diff --git a/app/gateway-api/src/config.ts b/app/gateway-api/src/config.ts
index 1d1c061e..45237f95 100644
--- a/app/gateway-api/src/config.ts
+++ b/app/gateway-api/src/config.ts
@@ -1,5 +1,6 @@
 import path from 'node:path';
 import { parseBooleanWithFallback, parseNumberWithFallback } from '@sammo-ts/common';
+import { resolveFrontendServeMode, type FrontendServeMode } from './orchestrator/frontendArtifactManager.js';
 
 export interface GatewayApiConfig {
     host: string;
@@ -36,6 +37,10 @@ export interface GatewayApiConfig {
     worktreeRoot: string;
     navigationConfigFile: string | null;
     defaultNavigationConfigFile: string;
+    frontendServeMode: FrontendServeMode;
+    frontendArtifactRoot: string;
+    frontendReadinessOrigin: string;
+    releaseBuilderUrl?: string;
 }
 
 export interface GatewayOrchestratorConfig {
@@ -49,6 +54,10 @@ export interface GatewayOrchestratorConfig {
     orchestratorAdminIntervalMs: number;
     workspaceRootHint: string;
     worktreeRoot: string;
+    frontendServeMode?: FrontendServeMode;
+    frontendArtifactRoot?: string;
+    frontendReadinessOrigin?: string;
+    releaseBuilderUrl?: string;
 }
 
 const resolveSchemaName = (value: string | undefined): string => {
@@ -136,6 +145,10 @@ export const resolveGatewayApiConfigFromEnv = (env: NodeJS.ProcessEnv = process.
         worktreeRoot: env.GATEWAY_WORKTREE_ROOT ?? path.resolve(workspaceRootHint, '.worktrees'),
         navigationConfigFile: env.CORE_NAVIGATION_CONFIG_FILE?.trim() || '/srv/data/navigation.json',
         defaultNavigationConfigFile: path.resolve(workspaceRootHint, 'resources/navigation.json'),
+        frontendServeMode: resolveFrontendServeMode(env.FRONTEND_SERVE_MODE),
+        frontendArtifactRoot: path.resolve(env.FRONTEND_ARTIFACT_ROOT ?? '/srv/frontend-artifacts'),
+        frontendReadinessOrigin: env.FRONTEND_READINESS_ORIGIN?.trim() || 'http://caddy',
+        releaseBuilderUrl: env.RELEASE_BUILDER_URL?.trim() || undefined,
     };
 };
 
@@ -176,5 +189,9 @@ export const resolveGatewayOrchestratorConfigFromEnv = (
         workspaceRootHint: env.GATEWAY_WORKSPACE_ROOT ?? process.cwd(),
         worktreeRoot:
             env.GATEWAY_WORKTREE_ROOT ?? path.resolve(env.GATEWAY_WORKSPACE_ROOT ?? process.cwd(), '.worktrees'),
+        frontendServeMode: resolveFrontendServeMode(env.FRONTEND_SERVE_MODE),
+        frontendArtifactRoot: path.resolve(env.FRONTEND_ARTIFACT_ROOT ?? '/srv/frontend-artifacts'),
+        frontendReadinessOrigin: env.FRONTEND_READINESS_ORIGIN?.trim() || 'http://caddy',
+        releaseBuilderUrl: env.RELEASE_BUILDER_URL?.trim() || undefined,
     };
 };
diff --git a/app/gateway-api/src/index.ts b/app/gateway-api/src/index.ts
index 78c82ad0..11e97eee 100644
--- a/app/gateway-api/src/index.ts
+++ b/app/gateway-api/src/index.ts
@@ -18,6 +18,7 @@ export * from './orchestrator/buildRunner.js';
 export * from './orchestrator/processManager.js';
 export * from './orchestrator/pm2ProcessManager.js';
 export * from './orchestrator/releaseManifest.js';
+export * from './orchestrator/frontendArtifactManager.js';
 export * from './auth/userRepository.js';
 export * from './auth/passwordHasher.js';
 export * from './auth/inMemoryUserRepository.js';
diff --git a/app/gateway-api/src/orchestrator/buildRunner.ts b/app/gateway-api/src/orchestrator/buildRunner.ts
index 725d85af..1c63781d 100644
--- a/app/gateway-api/src/orchestrator/buildRunner.ts
+++ b/app/gateway-api/src/orchestrator/buildRunner.ts
@@ -33,6 +33,22 @@ export interface BuildRunner {
 
 export const MAX_BUILD_OUTPUT_CHARS = 64 * 1024;
 const DEFAULT_RELEASE_TURBO_CONCURRENCY = 1;
+const RELEASE_BUILD_ENV_NAME = /^(?:CI|PATH|NODE_OPTIONS|RELEASE_BUILD_NODE_OPTIONS|PROFILE_FRONTEND_BUILD_NODE_OPTIONS|RAYON_NUM_THREADS|RELEASE_TURBO_CONCURRENCY|TURBO_CACHE_DIR|TZ|VITE_[A-Z0-9_]+)$/u;
+
+export const sanitizeReleaseBuildEnv = (
+    env: NodeJS.ProcessEnv | Record<string, string> | undefined
+): Record<string, string> => {
+    const sanitized = Object.fromEntries(
+        Object.entries(env ?? {}).filter(
+            (entry): entry is [string, string] => typeof entry[1] === 'string' && RELEASE_BUILD_ENV_NAME.test(entry[0])
+        )
+    );
+    if (sanitized.RELEASE_BUILD_NODE_OPTIONS) {
+        sanitized.NODE_OPTIONS = sanitized.RELEASE_BUILD_NODE_OPTIONS;
+        delete sanitized.RELEASE_BUILD_NODE_OPTIONS;
+    }
+    return sanitized;
+};
 
 export const resolveReleaseTurboConcurrency = (env?: Record<string, string>): number => {
     const configured = env?.RELEASE_TURBO_CONCURRENCY?.trim();
@@ -213,3 +229,100 @@ export class PnpmBuildRunner implements BuildRunner {
         };
     }
 }
+
+interface RemoteBuildMessage {
+    event?: BuildProgressEvent;
+    result?: BuildResult;
+    error?: string;
+}
+
+export class RemoteBuildRunner implements BuildRunner {
+    private readonly endpoint: string;
+
+    constructor(baseUrl: string, private readonly fetchImpl: typeof fetch = fetch) {
+        this.endpoint = new URL('/v1/builds', baseUrl.endsWith('/') ? baseUrl : `${baseUrl}/`).toString();
+    }
+
+    async run(
+        commands: BuildCommand[],
+        onProgress?: BuildProgressObserver,
+        options?: BuildRunOptions
+    ): Promise<BuildResult> {
+        let output = '';
+        try {
+            const response = await this.fetchImpl(this.endpoint, {
+                method: 'POST',
+                headers: { 'content-type': 'application/json' },
+                body: JSON.stringify({
+                    commands: commands.map((command) => ({
+                        ...command,
+                        env: sanitizeReleaseBuildEnv(command.env),
+                    })),
+                }),
+                signal: options?.signal,
+            });
+            if (!response.ok || !response.body) {
+                const detail = await response.text().catch(() => '');
+                return {
+                    ok: false,
+                    exitCode: null,
+                    output: appendOutputTail(output, detail || `Release builder returned HTTP ${response.status}.`),
+                };
+            }
+            const decoder = new TextDecoder();
+            let buffer = '';
+            for await (const chunk of response.body) {
+                buffer += decoder.decode(chunk, { stream: true });
+                const lines = buffer.split('\n');
+                buffer = lines.pop() ?? '';
+                for (const line of lines) {
+                    const result = await this.handleRemoteMessage(line, onProgress);
+                    if (result.event?.type === 'OUTPUT') {
+                        output = appendOutputTail(output, `${result.event.message}\n`);
+                    }
+                    if (result.result) return result.result;
+                    if (result.error) {
+                        return { ok: false, exitCode: null, output: appendOutputTail(output, result.error) };
+                    }
+                }
+            }
+            if (buffer.trim()) {
+                const result = await this.handleRemoteMessage(buffer, onProgress);
+                if (result.result) return result.result;
+                if (result.error) return { ok: false, exitCode: null, output: appendOutputTail(output, result.error) };
+            }
+            return { ok: false, exitCode: null, output: appendOutputTail(output, 'Release builder closed without a result.') };
+        } catch (error) {
+            const aborted = options?.signal?.aborted ?? false;
+            return {
+                ok: false,
+                exitCode: null,
+                output: appendOutputTail(
+                    output,
+                    aborted ? 'Build cancelled by operator.' : error instanceof Error ? error.message : String(error)
+                ),
+                ...(aborted ? { aborted: true } : {}),
+            };
+        }
+    }
+
+    private async handleRemoteMessage(
+        line: string,
+        onProgress?: BuildProgressObserver
+    ): Promise<RemoteBuildMessage> {
+        let message: RemoteBuildMessage;
+        try {
+            message = JSON.parse(line) as RemoteBuildMessage;
+        } catch {
+            return { error: 'Release builder returned malformed progress data.' };
+        }
+        if (message.event && onProgress) await onProgress(message.event);
+        return message;
+    }
+}
+
+export const createReleaseBuildRunner = (
+    baseUrl: string | undefined,
+    localRunner: BuildRunner,
+    fetchImpl: typeof fetch = fetch
+): BuildRunner => (baseUrl?.trim() ? new RemoteBuildRunner(baseUrl.trim(), fetchImpl) : localRunner);
diff --git a/app/gateway-api/src/orchestrator/frontendArtifactManager.ts b/app/gateway-api/src/orchestrator/frontendArtifactManager.ts
new file mode 100644
index 00000000..fdaa56e0
--- /dev/null
+++ b/app/gateway-api/src/orchestrator/frontendArtifactManager.ts
@@ -0,0 +1,241 @@
+import { createHash, randomUUID } from 'node:crypto';
+import fs from 'node:fs/promises';
+import path from 'node:path';
+
+export type FrontendServeMode = 'preview' | 'static';
+
+export interface FrontendArtifactManifest {
+    version: 1;
+    frontendKey: string;
+    commitSha: string;
+    digest: string;
+    releaseId: string;
+    files: number;
+}
+
+export interface StagedFrontendArtifact {
+    releaseId: string;
+    releasePath: string;
+    manifest: FrontendArtifactManifest;
+}
+
+const MANIFEST_FILE = '.sammo-artifact.json';
+const FRONTEND_KEY = /^[a-z0-9][a-z0-9_-]{0,63}$/u;
+const COMMIT_SHA = /^[0-9a-f]{40,64}$/iu;
+
+export const resolveFrontendServeMode = (value: string | undefined): FrontendServeMode => {
+    const normalized = value?.trim().toLowerCase();
+    if (!normalized || normalized === 'preview') return 'preview';
+    if (normalized === 'static') return 'static';
+    throw new Error('FRONTEND_SERVE_MODE must be preview or static.');
+};
+
+const assertFrontendKey = (value: string): void => {
+    if (!FRONTEND_KEY.test(value)) throw new Error(`Invalid frontend artifact key: ${value}`);
+};
+
+const assertCommitSha = (value: string): void => {
+    if (!COMMIT_SHA.test(value)) throw new Error('Frontend artifact commit SHA must be a full hexadecimal SHA.');
+};
+
+const listSourceFiles = async (sourceRoot: string): Promise<string[]> => {
+    const rootStat = await fs.lstat(sourceRoot);
+    if (!rootStat.isDirectory() || rootStat.isSymbolicLink()) {
+        throw new Error(`Frontend artifact source must be a real directory: ${sourceRoot}`);
+    }
+    const files: string[] = [];
+    const visit = async (relativeDirectory: string): Promise<void> => {
+        const directory = path.join(sourceRoot, relativeDirectory);
+        const entries = await fs.readdir(directory, { withFileTypes: true });
+        entries.sort((left, right) => left.name.localeCompare(right.name));
+        for (const entry of entries) {
+            const relativePath = path.join(relativeDirectory, entry.name);
+            const absolutePath = path.join(sourceRoot, relativePath);
+            const stat = await fs.lstat(absolutePath);
+            if (stat.isSymbolicLink()) {
+                throw new Error(`Frontend artifact source contains a symbolic link: ${relativePath}`);
+            }
+            if (stat.isDirectory()) {
+                await visit(relativePath);
+                continue;
+            }
+            if (!stat.isFile()) {
+                throw new Error(`Frontend artifact source contains an unsupported entry: ${relativePath}`);
+            }
+            files.push(relativePath);
+        }
+    };
+    await visit('');
+    if (!files.includes('index.html')) {
+        throw new Error(`Frontend artifact source is missing index.html: ${sourceRoot}`);
+    }
+    return files;
+};
+
+const buildDigest = async (sourceRoot: string, files: string[]): Promise<string> => {
+    const hash = createHash('sha256');
+    for (const relativePath of files) {
+        hash.update(relativePath.split(path.sep).join('/'));
+        hash.update('\0');
+        hash.update(await fs.readFile(path.join(sourceRoot, relativePath)));
+        hash.update('\0');
+    }
+    return hash.digest('hex');
+};
+
+const readManifest = async (releasePath: string): Promise<FrontendArtifactManifest> => {
+    const raw = JSON.parse(await fs.readFile(path.join(releasePath, MANIFEST_FILE), 'utf8')) as Partial<FrontendArtifactManifest>;
+    if (
+        raw.version !== 1 ||
+        typeof raw.frontendKey !== 'string' ||
+        typeof raw.commitSha !== 'string' ||
+        typeof raw.digest !== 'string' ||
+        typeof raw.releaseId !== 'string' ||
+        typeof raw.files !== 'number'
+    ) {
+        throw new Error(`Invalid frontend artifact manifest: ${releasePath}`);
+    }
+    await fs.access(path.join(releasePath, 'index.html'));
+    return raw as FrontendArtifactManifest;
+};
+
+const isMissing = (error: unknown): boolean =>
+    error instanceof Error && 'code' in error && (error as NodeJS.ErrnoException).code === 'ENOENT';
+
+export class FrontendArtifactManager {
+    readonly root: string;
+
+    constructor(root: string) {
+        this.root = path.resolve(root);
+    }
+
+    private frontendRoot(frontendKey: string): string {
+        assertFrontendKey(frontendKey);
+        return path.join(this.root, frontendKey);
+    }
+
+    private releasePath(frontendKey: string, releaseId: string): string {
+        if (!/^[0-9a-f]{40,64}-[0-9a-f]{16}$/iu.test(releaseId)) {
+            throw new Error(`Invalid frontend artifact release id: ${releaseId}`);
+        }
+        return path.join(this.frontendRoot(frontendKey), 'releases', releaseId);
+    }
+
+    async stage(options: {
+        frontendKey: string;
+        sourceRoot: string;
+        commitSha: string;
+    }): Promise<StagedFrontendArtifact> {
+        assertFrontendKey(options.frontendKey);
+        assertCommitSha(options.commitSha);
+        const commitSha = options.commitSha.toLowerCase();
+        const sourceRoot = path.resolve(options.sourceRoot);
+        const files = await listSourceFiles(sourceRoot);
+        const digest = await buildDigest(sourceRoot, files);
+        const releaseId = `${commitSha}-${digest.slice(0, 16)}`;
+        const releasePath = this.releasePath(options.frontendKey, releaseId);
+        const manifest: FrontendArtifactManifest = {
+            version: 1,
+            frontendKey: options.frontendKey,
+            commitSha,
+            digest,
+            releaseId,
+            files: files.length,
+        };
+        try {
+            const existing = await readManifest(releasePath);
+            if (existing.digest !== digest || existing.commitSha !== commitSha) {
+                throw new Error(`Frontend artifact release collision: ${releaseId}`);
+            }
+            return { releaseId, releasePath, manifest: existing };
+        } catch (error) {
+            if (!isMissing(error)) throw error;
+        }
+
+        const releasesRoot = path.dirname(releasePath);
+        await fs.mkdir(releasesRoot, { recursive: true, mode: 0o755 });
+        const stagingPath = path.join(releasesRoot, `.staging-${randomUUID()}`);
+        await fs.mkdir(stagingPath, { mode: 0o755 });
+        try {
+            for (const relativePath of files) {
+                const targetPath = path.join(stagingPath, relativePath);
+                await fs.mkdir(path.dirname(targetPath), { recursive: true, mode: 0o755 });
+                await fs.copyFile(path.join(sourceRoot, relativePath), targetPath);
+                await fs.chmod(targetPath, 0o644);
+            }
+            await fs.writeFile(path.join(stagingPath, MANIFEST_FILE), `${JSON.stringify(manifest, null, 2)}\n`, {
+                encoding: 'utf8',
+                mode: 0o644,
+            });
+            try {
+                await fs.rename(stagingPath, releasePath);
+            } catch (error) {
+                if (!isMissing(error) && error instanceof Error && 'code' in error && (error as NodeJS.ErrnoException).code === 'EEXIST') {
+                    const existing = await readManifest(releasePath);
+                    if (existing.digest !== digest || existing.commitSha !== commitSha) throw error;
+                } else {
+                    throw error;
+                }
+            }
+        } finally {
+            await fs.rm(stagingPath, { recursive: true, force: true });
+        }
+        return { releaseId, releasePath, manifest };
+    }
+
+    async readCurrentReleaseId(frontendKey: string): Promise<string | null> {
+        const frontendRoot = this.frontendRoot(frontendKey);
+        try {
+            const target = await fs.readlink(path.join(frontendRoot, 'current'));
+            const normalized = target.split(path.sep).join('/');
+            const match = /^releases\/([0-9a-f]{40,64}-[0-9a-f]{16})$/iu.exec(normalized);
+            if (!match) throw new Error(`Invalid current frontend artifact pointer for ${frontendKey}.`);
+            await readManifest(this.releasePath(frontendKey, match[1]));
+            return match[1];
+        } catch (error) {
+            if (isMissing(error)) return null;
+            throw error;
+        }
+    }
+
+    async activate(frontendKey: string, releaseId: string): Promise<string | null> {
+        const frontendRoot = this.frontendRoot(frontendKey);
+        const releasePath = this.releasePath(frontendKey, releaseId);
+        const manifest = await readManifest(releasePath);
+        if (manifest.frontendKey !== frontendKey || manifest.releaseId !== releaseId) {
+            throw new Error(`Frontend artifact manifest does not match ${frontendKey}/${releaseId}.`);
+        }
+        await fs.mkdir(frontendRoot, { recursive: true, mode: 0o755 });
+        const previousReleaseId = await this.readCurrentReleaseId(frontendKey);
+        const replacePointer = async (name: 'current' | 'previous', targetReleaseId: string): Promise<void> => {
+            const temporary = path.join(frontendRoot, `.${name}-${randomUUID()}`);
+            await fs.symlink(path.join('releases', targetReleaseId), temporary);
+            try {
+                await fs.rename(temporary, path.join(frontendRoot, name));
+            } finally {
+                await fs.rm(temporary, { force: true });
+            }
+        };
+        if (previousReleaseId && previousReleaseId !== releaseId) {
+            await replacePointer('previous', previousReleaseId);
+        }
+        await replacePointer('current', releaseId);
+        return previousReleaseId;
+    }
+
+    async stageAndActivate(options: {
+        frontendKey: string;
+        sourceRoot: string;
+        commitSha: string;
+    }): Promise<StagedFrontendArtifact & { previousReleaseId: string | null }> {
+        const staged = await this.stage(options);
+        const previousReleaseId = await this.activate(options.frontendKey, staged.releaseId);
+        return { ...staged, previousReleaseId };
+    }
+
+    async deactivate(frontendKey: string): Promise<string | null> {
+        const releaseId = await this.readCurrentReleaseId(frontendKey);
+        await fs.rm(path.join(this.frontendRoot(frontendKey), 'current'), { force: true });
+        return releaseId;
+    }
+}
diff --git a/app/gateway-api/src/orchestrator/gatewayOrchestrator.ts b/app/gateway-api/src/orchestrator/gatewayOrchestrator.ts
index a7a1961b..668acf82 100644
--- a/app/gateway-api/src/orchestrator/gatewayOrchestrator.ts
+++ b/app/gateway-api/src/orchestrator/gatewayOrchestrator.ts
@@ -30,6 +30,8 @@ import {
     type BuildProgressEvent,
     type BuildProgressObserver,
     type BuildRunner,
+    createReleaseBuildRunner,
+    sanitizeReleaseBuildEnv,
 } from './buildRunner.js';
 import { sanitizeManagedProcessEnv, type ProcessManager } from './processManager.js';
 import type {
@@ -51,12 +53,21 @@ import {
 } from './workspaceManager.js';
 import type { AdminSeedUser } from './seedProfileDatabase.js';
 import { assertReleaseComponents, readReleaseManifest } from './releaseManifest.js';
+import {
+    FrontendArtifactManager,
+    resolveFrontendServeMode,
+    type FrontendServeMode,
+} from './frontendArtifactManager.js';
 
 export interface GatewayProcessConfig {
     workspaceRoot: string;
     redisKeyPrefix: string;
     gameTokenSecret: string;
     gatewayInternalApiUrl: string;
+    frontendServeMode?: FrontendServeMode;
+    frontendArtifactRoot?: string;
+    frontendReadinessOrigin?: string;
+    releaseBuilderUrl?: string;
     baseEnv?: Record<string, string>;
 }
 
@@ -567,14 +578,14 @@ export const buildProfileFrontendCommands = (
         throw new Error('Profile frontend build requires a full commit SHA.');
     }
     const profileFrontendBuildNodeOptions = env?.PROFILE_FRONTEND_BUILD_NODE_OPTIONS?.trim();
-    const buildEnv = {
+    const buildEnv = sanitizeReleaseBuildEnv({
         ...(env ?? {}),
         ...(profileFrontendBuildNodeOptions ? { NODE_OPTIONS: profileFrontendBuildNodeOptions } : {}),
         VITE_APP_BASE_PATH: `/${profile.profile}`,
         VITE_GAME_API_URL: `/${profile.profile}/api/trpc`,
         VITE_GAME_SSE_URL: `/${profile.profile}/api/events`,
         VITE_BUILD_COMMIT_SHA: buildCommitSha.trim().toLowerCase(),
-    };
+    });
     return [
         buildTurboReleaseTaskCommand(
             workspaceRoot,
@@ -599,16 +610,17 @@ export const buildWorkspaceCommands = (
     cacheAnchorRoot: string = workspaceRoot,
     packageNames: string[] = ['@sammo-ts/game-api', '@sammo-ts/gateway-api']
 ): BuildCommand[] => {
+    const buildEnv = sanitizeReleaseBuildEnv(env);
     const commands: BuildCommand[] = [];
     if (needsInstall) {
         commands.push({
             command: 'pnpm',
             args: ['install', '--frozen-lockfile'],
             cwd: workspaceRoot,
-            env,
+            env: buildEnv,
         });
     }
-    commands.push(buildTurboReleaseCommand(workspaceRoot, cacheAnchorRoot, packageNames, env));
+    commands.push(buildTurboReleaseCommand(workspaceRoot, cacheAnchorRoot, packageNames, buildEnv));
     return commands;
 };
 
@@ -646,8 +658,11 @@ export class GatewayOrchestrator implements GatewayOrchestratorHandle {
     private readonly repository: GatewayProfileRepository;
     private readonly processManager: ProcessManager;
     private readonly buildRunner: BuildRunner;
+    private readonly releaseBuildRunner: BuildRunner;
     private readonly workspaceManager: GitWorkspaceManager;
     private readonly processConfig: GatewayProcessConfig;
+    private readonly frontendServeMode: FrontendServeMode;
+    private readonly artifactManager: FrontendArtifactManager;
     private readonly reconcileIntervalMs: number;
     private readonly scheduleIntervalMs: number;
     private readonly buildIntervalMs: number;
@@ -679,8 +694,17 @@ export class GatewayOrchestrator implements GatewayOrchestratorHandle {
         this.repository = options.repository;
         this.processManager = options.processManager;
         this.buildRunner = options.buildRunner;
+        this.releaseBuildRunner = createReleaseBuildRunner(
+            options.processConfig.releaseBuilderUrl,
+            options.buildRunner,
+            options.fetchImpl ?? fetch
+        );
         this.workspaceManager = options.workspaceManager;
         this.processConfig = options.processConfig;
+        this.frontendServeMode = resolveFrontendServeMode(options.processConfig.frontendServeMode);
+        this.artifactManager = new FrontendArtifactManager(
+            options.processConfig.frontendArtifactRoot ?? '/srv/frontend-artifacts'
+        );
         this.reconcileIntervalMs = options.reconcileIntervalMs;
         this.scheduleIntervalMs = options.scheduleIntervalMs;
         this.buildIntervalMs = options.buildIntervalMs;
@@ -802,7 +826,17 @@ export class GatewayOrchestrator implements GatewayOrchestratorHandle {
 
     async listRuntimeStates(profileNames: string[]): Promise<ProfileRuntimeSnapshot[]> {
         const processStates = await this.loadProcessStatusMap();
-        return mapRuntimeStates(profileNames, processStates);
+        const snapshots = mapRuntimeStates(profileNames, processStates);
+        if (this.frontendServeMode === 'preview') return snapshots;
+        await Promise.all(
+            snapshots.map(async (snapshot) => {
+                const profile = await this.repository.getProfile(snapshot.profileName);
+                snapshot.frontendRunning = profile
+                    ? (await this.artifactManager.readCurrentReleaseId(profile.profile)) !== null
+                    : false;
+            })
+        );
+        return snapshots;
     }
 
     async listRuntimeSettings(profileNames: string[]): Promise<ProfileRuntimeSettingsSnapshot[]> {
@@ -885,6 +919,10 @@ export class GatewayOrchestrator implements GatewayOrchestratorHandle {
                     continue;
                 }
                 const runtime = mapRuntimeStates([profile.profileName], processStates)[0];
+                if (this.frontendServeMode === 'static') {
+                    runtime.frontendRunning =
+                        (await this.artifactManager.readCurrentReleaseId(profile.profile)) !== null;
+                }
                 const plan = planProfileReconcile(profile.status, runtime);
                 if (plan.shouldStart) {
                     await this.startProfile(profile);
@@ -1521,7 +1559,7 @@ export class GatewayOrchestrator implements GatewayOrchestratorHandle {
                 ),
             ];
             await this.appendOperationLog(operationId, 'build', `${profile.profileName} 구성 요소를 빌드합니다.`);
-            const result = await this.buildRunner.run(commands, this.buildProgress(operationId, 'build'), {
+            const result = await this.releaseBuildRunner.run(commands, this.buildProgress(operationId, 'build'), {
                 signal: this.activeOperationAbortSignal,
             });
             if (!result.ok) {
@@ -1933,6 +1971,7 @@ export class GatewayOrchestrator implements GatewayOrchestratorHandle {
                     currentScenario: String(scenarioId),
                     status: desiredStatus,
                     buildStatus: 'SUCCEEDED',
+                    buildCommitSha: commitSha,
                     buildWorkspace: workspace.root,
                     buildLastUsedAt: completedAt,
                     buildCompletedAt: completedAt,
@@ -1970,6 +2009,7 @@ export class GatewayOrchestrator implements GatewayOrchestratorHandle {
                     currentScenario: String(scenarioId),
                     scenario: String(scenarioId),
                     status: desiredStatus,
+                    buildCommitSha: commitSha,
                     buildWorkspace: workspace.root,
                 };
                 await appendLog('switch', '초기화된 profile process를 시작합니다.');
@@ -2119,7 +2159,7 @@ export class GatewayOrchestrator implements GatewayOrchestratorHandle {
             );
         }
         return {
-            result: await this.buildRunner.run(
+            result: await this.releaseBuildRunner.run(
                 commands,
                 operationId ? this.buildProgress(operationId, 'build') : undefined,
                 { signal: this.activeOperationAbortSignal }
@@ -2281,7 +2321,7 @@ export class GatewayOrchestrator implements GatewayOrchestratorHandle {
     private async startProfile(profile: GatewayProfileRecord, assertLease?: () => Promise<void>): Promise<boolean> {
         const definitions = buildProcessDefinitions(profile, this.processConfig);
         const orderedDefinitions = [
-            definitions.frontend,
+            ...(this.frontendServeMode === 'preview' ? [definitions.frontend] : []),
             definitions.api,
             definitions.daemon,
             definitions.auction,
@@ -2290,10 +2330,26 @@ export class GatewayOrchestrator implements GatewayOrchestratorHandle {
         ];
         const attemptedNames: string[] = [];
         try {
+            const stagedArtifact =
+                this.frontendServeMode === 'static'
+                    ? await (async () => {
+                          if (!profile.buildCommitSha) {
+                              throw new Error(`Profile ${profile.profileName} is missing the build commit SHA.`);
+                          }
+                          const runtimeWorkspace = profile.buildWorkspace ?? this.processConfig.workspaceRoot;
+                          return this.artifactManager.stage({
+                              frontendKey: profile.profile,
+                              sourceRoot: buildProfileFrontendOutDir(runtimeWorkspace, profile.profileName),
+                              commitSha: profile.buildCommitSha,
+                          });
+                      })()
+                    : null;
             const expectedNames = new Set(orderedDefinitions.map((definition) => definition.name));
+            const obsoleteNames =
+                this.frontendServeMode === 'static' ? new Set([definitions.frontend.name]) : new Set<string>();
             const existingNames = new Set(
                 (await this.processManager.list())
-                    .filter((process) => expectedNames.has(process.name))
+                    .filter((process) => expectedNames.has(process.name) || obsoleteNames.has(process.name))
                     .map((process) => process.name)
             );
             for (const name of existingNames) {
@@ -2307,6 +2363,9 @@ export class GatewayOrchestrator implements GatewayOrchestratorHandle {
                 await this.processManager.start(definition);
                 await assertLease?.();
             }
+            if (stagedArtifact) {
+                await this.artifactManager.activate(profile.profile, stagedArtifact.releaseId);
+            }
             if (!assertLease) {
                 await this.repository.updateLastError(profile.profileName, null);
             }
@@ -2341,9 +2400,17 @@ export class GatewayOrchestrator implements GatewayOrchestratorHandle {
     ): Promise<boolean> {
         const deadline = Date.now() + this.profileReadinessTimeoutMs;
         const definitions = buildProcessDefinitions(profile, this.processConfig);
-        const expectedNames = Object.values(definitions).map((definition) => definition.name);
+        const expectedNames = Object.entries(definitions)
+            .filter(([role]) => this.frontendServeMode === 'preview' || role !== 'frontend')
+            .map(([, definition]) => definition.name);
         const apiUrl = `http://127.0.0.1:${profile.apiPort}/healthz`;
-        const frontendUrl = `http://127.0.0.1:${profile.apiPort - 1}/${profile.profile}/`;
+        const frontendUrl =
+            this.frontendServeMode === 'static'
+                ? new URL(
+                      `/${profile.profile}/`,
+                      this.processConfig.frontendReadinessOrigin ?? 'http://caddy'
+                  ).toString()
+                : `http://127.0.0.1:${profile.apiPort - 1}/${profile.profile}/`;
         while (Date.now() < deadline) {
             await assertLease?.();
             try {
@@ -2381,6 +2448,10 @@ export class GatewayOrchestrator implements GatewayOrchestratorHandle {
         const battleSimName = buildProcessName(profile.profileName, 'battle-sim');
         const tournamentName = buildProcessName(profile.profileName, 'tournament');
         await assertLease?.();
+        if (this.frontendServeMode === 'static') {
+            await this.artifactManager.deactivate(profile.profile);
+        }
+        await assertLease?.();
         const existingNames = new Set((await this.processManager.list()).map((process) => process.name));
         await assertLease?.();
         const failures: string[] = [];
diff --git a/app/gateway-api/src/orchestrator/orchestratorFactory.ts b/app/gateway-api/src/orchestrator/orchestratorFactory.ts
index c6a8f29e..6a98f036 100644
--- a/app/gateway-api/src/orchestrator/orchestratorFactory.ts
+++ b/app/gateway-api/src/orchestrator/orchestratorFactory.ts
@@ -41,6 +41,10 @@ export const createGatewayOrchestrator = (
             redisKeyPrefix: config.redisKeyPrefix,
             gameTokenSecret: config.gameTokenSecret,
             gatewayInternalApiUrl: config.gatewayInternalApiUrl,
+            frontendServeMode: config.frontendServeMode,
+            frontendArtifactRoot: config.frontendArtifactRoot,
+            frontendReadinessOrigin: config.frontendReadinessOrigin,
+            releaseBuilderUrl: config.releaseBuilderUrl,
             baseEnv,
         },
         reconcileIntervalMs: config.orchestratorReconcileIntervalMs,
diff --git a/app/gateway-api/src/orchestrator/workspaceManager.ts b/app/gateway-api/src/orchestrator/workspaceManager.ts
index 5257bcfe..c05c40df 100644
--- a/app/gateway-api/src/orchestrator/workspaceManager.ts
+++ b/app/gateway-api/src/orchestrator/workspaceManager.ts
@@ -66,6 +66,8 @@ const ensureDir = (dir: string): void => {
 const hasInstallMarker = (dir: string): boolean => fs.existsSync(path.join(dir, 'node_modules', '.pnpm'));
 const GIT_REF_PATTERN = /^[0-9A-Za-z._/-]+$/;
 const COMMIT_SHA_PATTERN = /^[0-9a-f]{40}$/i;
+const PERSISTENT_RELEASE_REF_PATTERN = /^refs\/sammo\/[a-z0-9][a-z0-9._/-]{0,127}$/u;
+const NULL_COMMIT_SHA = '0'.repeat(40);
 
 const assertGitRef = (value: string): string => {
     const ref = value.trim();
@@ -123,6 +125,47 @@ export class GitWorkspaceManager {
         throw new Error(`${sourceMode === 'BRANCH' ? 'Branch' : 'Commit'} not found.`);
     }
 
+    async readPersistentReleaseRef(ref: string): Promise<string | null> {
+        if (!PERSISTENT_RELEASE_REF_PATTERN.test(ref)) {
+            throw new Error('Persistent release ref must be below refs/sammo/.');
+        }
+        const result = await runGit(['rev-parse', '--verify', `${ref}^{commit}`], this.repoRoot, this.baseEnv);
+        if (!result.ok) return null;
+        const commitSha = result.output.trim().split('\n')[0];
+        if (!COMMIT_SHA_PATTERN.test(commitSha)) {
+            throw new Error(`Persistent release ref does not resolve to a commit: ${ref}`);
+        }
+        return commitSha.toLowerCase();
+    }
+
+    async compareAndSwapPersistentReleaseRef(
+        ref: string,
+        expectedCommitSha: string | null,
+        nextCommitSha: string | null
+    ): Promise<void> {
+        if (!PERSISTENT_RELEASE_REF_PATTERN.test(ref)) {
+            throw new Error('Persistent release ref must be below refs/sammo/.');
+        }
+        for (const commitSha of [expectedCommitSha, nextCommitSha]) {
+            if (commitSha !== null && !COMMIT_SHA_PATTERN.test(commitSha)) {
+                throw new Error('Persistent release ref commit must be a full SHA.');
+            }
+        }
+        if (nextCommitSha) {
+            const exists = await runGit(['cat-file', '-e', `${nextCommitSha}^{commit}`], this.repoRoot, this.baseEnv);
+            if (!exists.ok) throw new Error(`Persistent release commit is unavailable: ${nextCommitSha}`);
+        }
+        const args = nextCommitSha
+            ? ['update-ref', ref, nextCommitSha, expectedCommitSha ?? NULL_COMMIT_SHA]
+            : ['update-ref', '-d', ref, expectedCommitSha ?? NULL_COMMIT_SHA];
+        const updated = await runGit(args, this.repoRoot, this.baseEnv);
+        if (!updated.ok) {
+            throw new Error(
+                `Failed to update persistent release ref ${ref}${updated.output ? `: ${updated.output.trim()}` : ''}`
+            );
+        }
+    }
+
     async prepare(commitSha: string): Promise<WorkspaceInfo> {
         if (!COMMIT_SHA_PATTERN.test(commitSha)) {
             throw new Error('Invalid commit SHA.');
diff --git a/app/gateway-api/test/frontendArtifactManager.test.ts b/app/gateway-api/test/frontendArtifactManager.test.ts
new file mode 100644
index 00000000..0eaab349
--- /dev/null
+++ b/app/gateway-api/test/frontendArtifactManager.test.ts
@@ -0,0 +1,73 @@
+import fs from 'node:fs/promises';
+import os from 'node:os';
+import path from 'node:path';
+
+import { afterEach, describe, expect, it } from 'vitest';
+
+import { FrontendArtifactManager, resolveFrontendServeMode } from '../src/orchestrator/frontendArtifactManager.js';
+
+const roots: string[] = [];
+const sha = 'a'.repeat(40);
+
+afterEach(async () => {
+    await Promise.all(roots.splice(0).map((root) => fs.rm(root, { recursive: true, force: true })));
+});
+
+const fixture = async (): Promise<{ source: string; artifacts: string }> => {
+    const root = await fs.mkdtemp(path.join(os.tmpdir(), 'sammo-frontend-artifact-'));
+    roots.push(root);
+    const source = path.join(root, 'dist');
+    const artifacts = path.join(root, 'artifacts');
+    await fs.mkdir(path.join(source, 'assets'), { recursive: true });
+    await fs.writeFile(path.join(source, 'index.html'), '<div>one</div>');
+    await fs.writeFile(path.join(source, 'assets', 'app-deadbeef.js'), 'console.log(1)');
+    return { source, artifacts };
+};
+
+describe('resolveFrontendServeMode', () => {
+    it('keeps preview as the compatibility default and accepts explicit static mode', () => {
+        expect(resolveFrontendServeMode(undefined)).toBe('preview');
+        expect(resolveFrontendServeMode('preview')).toBe('preview');
+        expect(resolveFrontendServeMode('STATIC')).toBe('static');
+        expect(() => resolveFrontendServeMode('server')).toThrow(/preview or static/u);
+    });
+});
+
+describe('FrontendArtifactManager', () => {
+    it('stages immutable releases and atomically switches current and previous pointers', async () => {
+        const { source, artifacts } = await fixture();
+        const manager = new FrontendArtifactManager(artifacts);
+        const first = await manager.stageAndActivate({ frontendKey: 'gateway', sourceRoot: source, commitSha: sha });
+        expect(await manager.readCurrentReleaseId('gateway')).toBe(first.releaseId);
+        expect(await fs.readFile(path.join(artifacts, 'gateway', 'current', 'index.html'), 'utf8')).toContain('one');
+
+        await fs.writeFile(path.join(source, 'index.html'), '<div>two</div>');
+        const second = await manager.stageAndActivate({
+            frontendKey: 'gateway',
+            sourceRoot: source,
+            commitSha: 'b'.repeat(40),
+        });
+        expect(second.previousReleaseId).toBe(first.releaseId);
+        expect(await fs.readFile(path.join(artifacts, 'gateway', 'current', 'index.html'), 'utf8')).toContain('two');
+        expect(await fs.readFile(path.join(artifacts, 'gateway', 'previous', 'index.html'), 'utf8')).toContain('one');
+        expect(await fs.readFile(path.join(first.releasePath, 'index.html'), 'utf8')).toContain('one');
+    });
+
+    it('removes only the live pointer when a frontend is stopped', async () => {
+        const { source, artifacts } = await fixture();
+        const manager = new FrontendArtifactManager(artifacts);
+        const staged = await manager.stageAndActivate({ frontendKey: 'che', sourceRoot: source, commitSha: sha });
+        expect(await manager.deactivate('che')).toBe(staged.releaseId);
+        expect(await manager.readCurrentReleaseId('che')).toBeNull();
+        expect(await fs.readFile(path.join(staged.releasePath, 'index.html'), 'utf8')).toContain('one');
+    });
+
+    it('rejects symlinks instead of copying files outside the build output', async () => {
+        const { source, artifacts } = await fixture();
+        await fs.symlink('/etc/passwd', path.join(source, 'assets', 'outside'));
+        const manager = new FrontendArtifactManager(artifacts);
+        await expect(manager.stage({ frontendKey: 'gateway', sourceRoot: source, commitSha: sha })).rejects.toThrow(
+            /symbolic link/u
+        );
+    });
+});
diff --git a/app/gateway-api/test/orchestratorOperations.test.ts b/app/gateway-api/test/orchestratorOperations.test.ts
index aab4f046..6f7be476 100644
--- a/app/gateway-api/test/orchestratorOperations.test.ts
+++ b/app/gateway-api/test/orchestratorOperations.test.ts
@@ -1,4 +1,8 @@
-import { describe, expect, it } from 'vitest';
+import fs from 'node:fs/promises';
+import os from 'node:os';
+import path from 'node:path';
+
+import { afterEach, describe, expect, it } from 'vitest';
 
 import { GatewayOrchestrator, type GatewayOrchestratorOptions } from '../src/orchestrator/gatewayOrchestrator.js';
 import type { ProcessDefinition, ProcessManager } from '../src/orchestrator/processManager.js';
@@ -10,6 +14,12 @@ import type {
 } from '../src/orchestrator/profileRepository.js';
 import { GitWorkspaceManager } from '../src/orchestrator/workspaceManager.js';
 
+const temporaryDirectories: string[] = [];
+
+afterEach(async () => {
+    await Promise.all(temporaryDirectories.splice(0).map((directory) => fs.rm(directory, { recursive: true })));
+});
+
 const profile: GatewayProfileRecord = {
     profileName: 'che:2',
     profile: 'che',
@@ -52,6 +62,9 @@ const createHarness = (
         reservedToStart?: GatewayProfileRecord[];
         now?: () => Date;
         cancelGame?: GatewayOrchestratorOptions['cancelGame'];
+        frontendServeMode?: 'static';
+        frontendArtifactRoot?: string;
+        activeOperationProfileNames?: string[];
     } = {}
 ) => {
     const harnessProfile = options.profile ?? profile;
@@ -85,7 +98,8 @@ const createHarness = (
         updateWorkspaceUsage: async () => {},
         clearWorkspaceUsage: async () => {},
         listOperations: async () => [],
-        listActiveOperationProfileNames: async () => [harnessProfile.profileName],
+        listActiveOperationProfileNames: async () =>
+            options.activeOperationProfileNames ?? [harnessProfile.profileName],
         getOperation: async () => operation,
         listOperationLogs: async () => [],
         appendOperationLog: async (operationId, input) => {
@@ -168,6 +182,8 @@ const createHarness = (
             redisKeyPrefix: 'sammo:test',
             gameTokenSecret: 'test-secret',
             gatewayInternalApiUrl: 'http://127.0.0.1:13000',
+            frontendServeMode: options.frontendServeMode,
+            frontendArtifactRoot: options.frontendArtifactRoot,
             baseEnv: { DATABASE_URL: 'postgresql://test:test@127.0.0.1:15432/test' },
         },
         reconcileIntervalMs: 60_000,
@@ -375,6 +391,56 @@ describe('GatewayOrchestrator first-class operations', () => {
         expect(harness.completions).toEqual(['SUCCEEDED']);
     });
 
+    it('removes a legacy Vite process while publishing the first static artifact', async () => {
+        const workspace = await fs.mkdtemp(path.join(os.tmpdir(), 'sammo-static-cutover-'));
+        temporaryDirectories.push(workspace);
+        await fs.mkdir(path.join(workspace, '.release-dist', 'che_2', 'game-frontend'), { recursive: true });
+        await fs.writeFile(
+            path.join(workspace, '.release-dist', 'che_2', 'game-frontend', 'index.html'),
+            '<!doctype html><title>static cutover</title>'
+        );
+        const artifactRoot = path.join(workspace, 'artifacts');
+        const staticProfile = { ...profile, status: 'RUNNING' as const, buildWorkspace: workspace };
+        const harness = createHarness(buildOperation('START'), false, false, true, false, undefined, undefined, {
+            profile: staticProfile,
+            frontendServeMode: 'static',
+            frontendArtifactRoot: artifactRoot,
+            activeOperationProfileNames: [],
+        });
+
+        await harness.orchestrator.reconcileNow();
+
+        expect(harness.deleted).toContain('sammo:che:2:game-frontend');
+        expect(harness.started.map((definition) => definition.name)).toEqual([
+            'sammo:che:2:game-api',
+            'sammo:che:2:turn-daemon',
+            'sammo:che:2:auction-worker',
+            'sammo:che:2:battle-sim-worker',
+            'sammo:che:2:tournament-worker',
+        ]);
+        expect(await fs.readFile(path.join(artifactRoot, 'che', 'current', 'index.html'), 'utf8')).toContain(
+            'static cutover'
+        );
+        expect(harness.completions).toEqual([]);
+    });
+
+    it('keeps legacy processes untouched when the first static artifact cannot be staged', async () => {
+        const workspace = await fs.mkdtemp(path.join(os.tmpdir(), 'sammo-static-cutover-missing-'));
+        temporaryDirectories.push(workspace);
+        const harness = createHarness(buildOperation('START'), false, false, true, false, undefined, undefined, {
+            profile: { ...profile, status: 'RUNNING', buildWorkspace: workspace },
+            frontendServeMode: 'static',
+            frontendArtifactRoot: path.join(workspace, 'artifacts'),
+            activeOperationProfileNames: [],
+        });
+
+        await harness.orchestrator.reconcileNow();
+
+        expect(harness.started).toEqual([]);
+        expect(harness.deleted).toEqual([]);
+        expect(harness.completions).toEqual([]);
+    });
+
     it('stops every profile process and records success', async () => {
         const harness = createHarness(buildOperation('STOP'));
 
diff --git a/app/gateway-api/test/profileDeployOperation.test.ts b/app/gateway-api/test/profileDeployOperation.test.ts
index 7feecf1e..0998f2f5 100644
--- a/app/gateway-api/test/profileDeployOperation.test.ts
+++ b/app/gateway-api/test/profileDeployOperation.test.ts
@@ -37,6 +37,17 @@ const createReleaseWorkspace = async (): Promise<string> => {
             components: ['game-api', 'game-engine', 'game-frontend'],
         })
     );
+    await fs.mkdir(path.join(workspace, '.release-dist', 'che_1010', 'game-frontend', 'assets'), {
+        recursive: true,
+    });
+    await fs.writeFile(
+        path.join(workspace, '.release-dist', 'che_1010', 'game-frontend', 'index.html'),
+        '<!doctype html><title>static profile</title>'
+    );
+    await fs.writeFile(
+        path.join(workspace, '.release-dist', 'che_1010', 'game-frontend', 'assets', 'app-deadbeef.js'),
+        'console.log("static")'
+    );
     return workspace;
 };
 
@@ -45,7 +56,7 @@ afterEach(async () => {
 });
 
 describe('profile DEPLOY operation', () => {
-    it('migrates and switches the selected release without executing the reset seed path', async () => {
+    it('migrates and atomically switches a static frontend without executing the reset seed path', async () => {
         const workspace = await createReleaseWorkspace();
         const profile: GatewayProfileRecord = {
             profileName: 'che:1010',
@@ -131,6 +142,7 @@ describe('profile DEPLOY operation', () => {
             'sammo:che:1010:battle-sim-worker',
             'sammo:che:1010:tournament-worker',
         ];
+        const backendProcessNames = processNames.filter((name) => !name.endsWith(':game-frontend'));
         const running = new Set(processNames);
         const processManager: ProcessManager = {
             list: async () => [...running].map((name) => ({ name, status: 'online' })),
@@ -171,6 +183,9 @@ describe('profile DEPLOY operation', () => {
                 redisKeyPrefix: 'sammo:test',
                 gameTokenSecret: 'test-secret',
                 gatewayInternalApiUrl: 'http://127.0.0.1:15001',
+                frontendServeMode: 'static',
+                frontendArtifactRoot: path.join(workspace, 'artifact-volume'),
+                frontendReadinessOrigin: 'http://caddy',
                 baseEnv: { DATABASE_URL: 'postgresql://user:pass@integration.invalid/sammo' },
             },
             reconcileIntervalMs: 60_000,
@@ -218,6 +233,9 @@ describe('profile DEPLOY operation', () => {
         );
         expect(logs.map((entry) => entry.message).join('\n')).not.toContain('pass@integration.invalid');
         expect(logs.map((entry) => entry.message).join('\n')).toContain('[REDACTED]');
-        expect([...running].sort()).toEqual([...processNames].sort());
+        expect([...running].sort()).toEqual([...backendProcessNames].sort());
+        expect(
+            await fs.readFile(path.join(workspace, 'artifact-volume', 'che', 'current', 'index.html'), 'utf8')
+        ).toContain('static profile');
     });
 });
diff --git a/app/gateway-api/test/remoteBuildRunner.test.ts b/app/gateway-api/test/remoteBuildRunner.test.ts
new file mode 100644
index 00000000..131615a2
--- /dev/null
+++ b/app/gateway-api/test/remoteBuildRunner.test.ts
@@ -0,0 +1,68 @@
+import { describe, expect, it, vi } from 'vitest';
+
+import {
+    RemoteBuildRunner,
+    sanitizeReleaseBuildEnv,
+    type BuildProgressEvent,
+} from '../src/orchestrator/buildRunner.js';
+
+describe('sanitizeReleaseBuildEnv', () => {
+    it('keeps only public build controls and frontend values', () => {
+        expect(
+            sanitizeReleaseBuildEnv({
+                CI: 'true',
+                NODE_OPTIONS: '--max-old-space-size=1024',
+                VITE_APP_BASE_PATH: '/gateway',
+                GAME_TOKEN_SECRET: 'secret',
+                DATABASE_URL: 'postgresql://private',
+                REDIS_URL: 'redis://private',
+                PATH: '/private/path',
+            })
+        ).toEqual({
+            CI: 'true',
+            PATH: '/private/path',
+            NODE_OPTIONS: '--max-old-space-size=1024',
+            VITE_APP_BASE_PATH: '/gateway',
+        });
+        expect(
+            sanitizeReleaseBuildEnv({
+                NODE_OPTIONS: '--max-old-space-size=1536',
+                RELEASE_BUILD_NODE_OPTIONS: '--max-old-space-size=3072',
+            })
+        ).toEqual({ NODE_OPTIONS: '--max-old-space-size=3072' });
+    });
+});
+
+describe('RemoteBuildRunner', () => {
+    it('streams progress and returns the builder result without sending secrets', async () => {
+        const messages = [
+            { event: { type: 'OUTPUT', stream: 'stdout', message: 'building' } },
+            { result: { ok: true, exitCode: 0, output: 'building' } },
+        ];
+        const fetchImpl = vi.fn(async (_url: string | URL | Request, init?: RequestInit) => {
+            const request = JSON.parse(String(init?.body)) as {
+                commands: Array<{ env: Record<string, string> }>;
+            };
+            expect(request.commands[0].env).toEqual({ VITE_APP_BASE_PATH: '/gateway' });
+            return new Response(`${messages.map((message) => JSON.stringify(message)).join('\n')}\n`, {
+                status: 200,
+            });
+        }) as unknown as typeof fetch;
+        const progress: BuildProgressEvent[] = [];
+        const result = await new RemoteBuildRunner('http://builder:15100', fetchImpl).run(
+            [
+                {
+                    command: 'pnpm',
+                    args: ['exec', 'turbo', 'run', 'build'],
+                    cwd: '/srv/core/repository',
+                    env: { VITE_APP_BASE_PATH: '/gateway', GAME_TOKEN_SECRET: 'do-not-send' },
+                },
+            ],
+            (event) => {
+                progress.push(event);
+            }
+        );
+        expect(result).toEqual({ ok: true, exitCode: 0, output: 'building' });
+        expect(progress).toEqual([{ type: 'OUTPUT', stream: 'stdout', message: 'building' }]);
+    });
+});
diff --git a/app/gateway-api/test/workspaceManager.test.ts b/app/gateway-api/test/workspaceManager.test.ts
index 2fa37eb9..3730bad0 100644
--- a/app/gateway-api/test/workspaceManager.test.ts
+++ b/app/gateway-api/test/workspaceManager.test.ts
@@ -103,6 +103,25 @@ describe('GitWorkspaceManager source resolution', () => {
         await expect(manager.resolveCommit('COMMIT', 'HEAD..main')).rejects.toThrow('Invalid git ref');
     });
 
+    it('atomically publishes only refs below the managed release namespace', async () => {
+        const fixture = createRepositoryFixture();
+        const manager = new GitWorkspaceManager({
+            repoRoot: fixture.checkout,
+            worktreeRoot: fixture.worktrees,
+        });
+        const releaseRef = 'refs/sammo/active-gateway';
+
+        await expect(manager.readPersistentReleaseRef(releaseRef)).resolves.toBeNull();
+        await manager.compareAndSwapPersistentReleaseRef(releaseRef, null, fixture.firstCommit);
+        await expect(manager.readPersistentReleaseRef(releaseRef)).resolves.toBe(fixture.firstCommit);
+        await expect(
+            manager.compareAndSwapPersistentReleaseRef(releaseRef, 'f'.repeat(40), fixture.firstCommit)
+        ).rejects.toThrow(/Failed to update persistent release ref/u);
+        await manager.compareAndSwapPersistentReleaseRef(releaseRef, fixture.firstCommit, null);
+        await expect(manager.readPersistentReleaseRef(releaseRef)).resolves.toBeNull();
+        await expect(manager.readPersistentReleaseRef('refs/heads/main')).rejects.toThrow(/refs\/sammo/u);
+    });
+
     it('reuses only a clean registered worktree at the requested commit', async () => {
         const fixture = createRepositoryFixture();
         const manager = new GitWorkspaceManager({
diff --git a/app/release-controller/src/config.ts b/app/release-controller/src/config.ts
index 9e23fd83..b734bbfe 100644
--- a/app/release-controller/src/config.ts
+++ b/app/release-controller/src/config.ts
@@ -1,6 +1,7 @@
 import path from 'node:path';
 
 import { sanitizeManagedProcessEnv } from '@sammo-ts/gateway-api';
+import { resolveFrontendServeMode, type FrontendServeMode } from '@sammo-ts/gateway-api';
 import { resolvePostgresPoolMax } from '@sammo-ts/infra';
 
 const parsePositiveInt = (value: string | undefined, fallback: number, name: string): number => {
@@ -24,6 +25,11 @@ export interface ReleaseControllerConfig {
     gatewayApiPort: number;
     gatewayFrontendPort: number;
     gatewayBasePath: string;
+    frontendServeMode?: FrontendServeMode;
+    frontendArtifactRoot?: string;
+    frontendReadinessOrigin?: string;
+    releaseBuilderUrl?: string;
+    activeReleaseGitRef?: string;
     pollIntervalMs: number;
     readinessTimeoutMs: number;
     postgresPoolMax: number;
@@ -50,6 +56,11 @@ export const resolveReleaseControllerConfig = (env: NodeJS.ProcessEnv = process.
         gatewayApiPort: parsePositiveInt(env.GATEWAY_API_PORT, 15001, 'GATEWAY_API_PORT'),
         gatewayFrontendPort: parsePositiveInt(env.GATEWAY_FRONTEND_PORT, 15000, 'GATEWAY_FRONTEND_PORT'),
         gatewayBasePath: env.GATEWAY_BASE_PATH?.trim() || '/gateway',
+        frontendServeMode: resolveFrontendServeMode(env.FRONTEND_SERVE_MODE),
+        frontendArtifactRoot: path.resolve(env.FRONTEND_ARTIFACT_ROOT ?? '/srv/frontend-artifacts'),
+        frontendReadinessOrigin: env.FRONTEND_READINESS_ORIGIN?.trim() || 'http://caddy',
+        releaseBuilderUrl: env.RELEASE_BUILDER_URL?.trim() || undefined,
+        activeReleaseGitRef: env.GATEWAY_ACTIVE_RELEASE_GIT_REF?.trim() || undefined,
         pollIntervalMs: parsePositiveInt(env.RELEASE_CONTROLLER_POLL_MS, 5000, 'RELEASE_CONTROLLER_POLL_MS'),
         readinessTimeoutMs: parsePositiveInt(
             env.RELEASE_CONTROLLER_READINESS_TIMEOUT_MS,
diff --git a/app/release-controller/src/index.ts b/app/release-controller/src/index.ts
index c0810564..042ab0bc 100644
--- a/app/release-controller/src/index.ts
+++ b/app/release-controller/src/index.ts
@@ -4,6 +4,7 @@ import {
     GitWorkspaceManager,
     Pm2ProcessManager,
     PnpmBuildRunner,
+    createReleaseBuildRunner,
 } from '@sammo-ts/gateway-api';
 
 import { resolveReleaseControllerConfig } from './config.js';
@@ -28,6 +29,7 @@ const main = async (): Promise<void> => {
         baseEnv: config.baseEnv,
     });
     const buildRunner = new PnpmBuildRunner();
+    const releaseBuildRunner = createReleaseBuildRunner(config.releaseBuilderUrl, buildRunner);
     const processManager = new Pm2ProcessManager();
     const controller = new GatewayReleaseController(repository, workspaceManager, buildRunner, processManager, config);
     const command = process.argv[2] ?? 'daemon';
@@ -57,7 +59,8 @@ const main = async (): Promise<void> => {
             sourceMode,
             sourceRef,
             workspaceManager,
-            buildRunner,
+            buildRunner: releaseBuildRunner,
+            migrationRunner: buildRunner,
             processManager,
             config,
         });
diff --git a/app/release-controller/src/releaseController.ts b/app/release-controller/src/releaseController.ts
index 4e8f5bf0..756f17d9 100644
--- a/app/release-controller/src/releaseController.ts
+++ b/app/release-controller/src/releaseController.ts
@@ -17,8 +17,11 @@ import {
     type GitWorkspaceManager,
     type ProcessDefinition,
     type ProcessManager,
+    createReleaseBuildRunner,
+    FrontendArtifactManager,
     readReleaseManifest,
     sanitizeManagedProcessEnv,
+    sanitizeReleaseBuildEnv,
 } from '@sammo-ts/gateway-api';
 import { resolvePostgresPoolMax } from '@sammo-ts/infra';
 
@@ -27,7 +30,7 @@ import type { ReleaseControllerConfig } from './config.js';
 const LEASE_DURATION_MS = 10 * 60_000;
 const HEARTBEAT_INTERVAL_MS = 60_000;
 const CANCELLATION_POLL_INTERVAL_MS = 500;
-const PROCESS_NAMES = ['sammo:gateway-api', 'sammo:gateway-frontend', 'sammo:gateway-orchestrator'] as const;
+const MANAGED_PROCESS_NAMES = ['sammo:gateway-api', 'sammo:gateway-frontend', 'sammo:gateway-orchestrator'] as const;
 const SENSITIVE_ENV_NAME = /(SECRET|TOKEN|PASSWORD|PASSWD|PRIVATE_KEY|CLIENT_SECRET|DATABASE_URL|REDIS_URL)/iu;
 export const RELEASE_WORKSPACE_CLEANUP_INTERVAL_MS = 24 * 60 * 60 * 1_000;
 
@@ -48,13 +51,14 @@ const buildGatewayReleaseCommands = (
     needsInstall: boolean,
     config: ReleaseControllerConfig
 ): BuildCommand[] => {
-    const env = {
-        ...sanitizeManagedProcessEnv(config.baseEnv),
+    const env = sanitizeReleaseBuildEnv({
+        ...config.baseEnv,
+        NODE_OPTIONS: config.baseEnv.RELEASE_BUILD_NODE_OPTIONS ?? config.baseEnv.NODE_OPTIONS,
         VITE_APP_BASE_PATH: config.gatewayBasePath,
         VITE_GATEWAY_API_URL: `${config.gatewayBasePath}/api/trpc`,
         VITE_GAME_API_URL_TEMPLATE: '/{profile}/api/trpc',
         VITE_GAME_WEB_URL_TEMPLATE: '/{profile}/',
-    };
+    });
     return [
         ...(needsInstall ? [{ command: 'pnpm', args: ['install', '--frozen-lockfile'], cwd: workspaceRoot, env }] : []),
         buildTurboReleaseCommand(workspaceRoot, config.workspaceRoot, ['@sammo-ts/gateway-api'], env),
@@ -97,7 +101,7 @@ export const buildGatewayProcessDefinitions = (
         GATEWAY_API_PORT: String(config.gatewayApiPort),
         GATEWAY_DATABASE_URL: config.gatewayDatabaseUrl,
     };
-    return [
+    const definitions: ProcessDefinition[] = [
         {
             name: 'sammo:gateway-api',
             script: apiScript,
@@ -108,13 +112,6 @@ export const buildGatewayProcessDefinitions = (
                 GATEWAY_ROLE: 'api',
             },
         },
-        {
-            name: 'sammo:gateway-frontend',
-            script: frontendScript,
-            cwd: frontendCwd,
-            args: ['preview', '--host', '0.0.0.0', '--port', String(config.gatewayFrontendPort)],
-            env,
-        },
         {
             name: 'sammo:gateway-orchestrator',
             script: apiScript,
@@ -126,6 +123,16 @@ export const buildGatewayProcessDefinitions = (
             },
         },
     ];
+    if (config.frontendServeMode !== 'static') {
+        definitions.splice(1, 0, {
+            name: 'sammo:gateway-frontend',
+            script: frontendScript,
+            cwd: frontendCwd,
+            args: ['preview', '--host', '0.0.0.0', '--port', String(config.gatewayFrontendPort)],
+            env,
+        });
+    }
+    return definitions;
 };
 
 const isMissingProcessError = (error: unknown): boolean =>
@@ -133,6 +140,8 @@ const isMissingProcessError = (error: unknown): boolean =>
 
 export class GatewayReleaseController {
     private readonly ownerId = randomUUID();
+    private readonly releaseBuildRunner: BuildRunner;
+    private readonly artifactManager: FrontendArtifactManager;
 
     constructor(
         private readonly repository: GatewayReleaseRepository,
@@ -142,7 +151,10 @@ export class GatewayReleaseController {
         private readonly config: ReleaseControllerConfig,
         private readonly now: () => Date = () => new Date(),
         private readonly fetchImpl: typeof fetch = fetch
-    ) {}
+    ) {
+        this.releaseBuildRunner = createReleaseBuildRunner(config.releaseBuilderUrl, buildRunner, fetchImpl);
+        this.artifactManager = new FrontendArtifactManager(config.frontendArtifactRoot ?? '/srv/frontend-artifacts');
+    }
 
     async cleanupStaleWorkspaces(): Promise<{ removed: string[]; skipped: string[] }> {
         const [state, processes, workspaces] = await Promise.all([
@@ -317,12 +329,20 @@ export class GatewayReleaseController {
         const manifest = await readReleaseManifest(workspace.root);
         assertReleaseComponents(manifest, ['gateway-api', 'gateway-frontend']);
         await this.appendLog(operation.id, 'build', 'Gateway 구성 요소를 빌드합니다.');
-        const build = await this.buildRunner.run(
+        const build = await this.releaseBuildRunner.run(
             buildGatewayReleaseCommands(workspace.root, workspace.needsInstall, this.config),
             this.buildProgress(operation.id, 'build'),
             { signal }
         );
         if (!build.ok) throw new Error(`Gateway release build failed: ${build.output.slice(-4000)}`);
+        const stagedArtifact =
+            this.config.frontendServeMode === 'static'
+                ? await this.artifactManager.stage({
+                      frontendKey: 'gateway',
+                      sourceRoot: path.join(workspace.root, 'app', 'gateway-frontend', 'dist'),
+                      commitSha,
+                  })
+                : null;
         await this.appendLog(operation.id, 'migration', 'Gateway database migration을 적용합니다.');
         await this.assertOperationLease(operation.id);
         const migration = await this.buildRunner.run(
@@ -339,8 +359,15 @@ export class GatewayReleaseController {
         await this.appendLog(operation.id, 'switch', '기존 Gateway process를 정지합니다.');
         await this.assertOperationLease(operation.id);
         await this.stopManagedProcesses(operation.id);
+        const previousArtifactReleaseId =
+            this.config.frontendServeMode === 'static'
+                ? await this.artifactManager.readCurrentReleaseId('gateway')
+                : null;
         try {
             await this.startDefinitions(buildGatewayProcessDefinitions(workspace.root, this.config), operation.id);
+            if (stagedArtifact) {
+                await this.artifactManager.activate('gateway', stagedArtifact.releaseId);
+            }
             await this.waitForReadiness(operation.id);
         } catch (error) {
             await this.appendLog(
@@ -350,6 +377,13 @@ export class GatewayReleaseController {
                 'ERROR'
             );
             await this.stopManagedProcesses(operation.id);
+            if (this.config.frontendServeMode === 'static') {
+                if (previousArtifactReleaseId) {
+                    await this.artifactManager.activate('gateway', previousArtifactReleaseId);
+                } else {
+                    await this.artifactManager.deactivate('gateway');
+                }
+            }
             if (previousDefinitions.length) {
                 await this.startDefinitions(previousDefinitions, operation.id);
                 await this.waitForReadiness(operation.id);
@@ -357,12 +391,43 @@ export class GatewayReleaseController {
             throw error;
         }
         await this.appendLog(operation.id, 'publish', '검증된 Gateway 릴리스를 active 상태로 게시합니다.');
-        await this.repository.publishRelease(operation.id, this.ownerId, {
-            commitSha,
-            workspace: workspace.root,
-            previousCommitSha: state.activeCommitSha,
-            previousWorkspace: state.activeWorkspace,
-        });
+        const activeReleaseGitRef = this.config.activeReleaseGitRef;
+        const previousPersistentCommit = activeReleaseGitRef
+            ? await this.workspaceManager.readPersistentReleaseRef(activeReleaseGitRef)
+            : null;
+        if (activeReleaseGitRef) {
+            await this.workspaceManager.compareAndSwapPersistentReleaseRef(
+                activeReleaseGitRef,
+                previousPersistentCommit,
+                commitSha
+            );
+        }
+        try {
+            await this.repository.publishRelease(operation.id, this.ownerId, {
+                commitSha,
+                workspace: workspace.root,
+                previousCommitSha: state.activeCommitSha,
+                previousWorkspace: state.activeWorkspace,
+            });
+        } catch (error) {
+            if (activeReleaseGitRef) {
+                try {
+                    await this.workspaceManager.compareAndSwapPersistentReleaseRef(
+                        activeReleaseGitRef,
+                        commitSha,
+                        previousPersistentCommit
+                    );
+                } catch (rollbackError) {
+                    await this.appendLog(
+                        operation.id,
+                        'rollback',
+                        `Gateway bootstrap ref 복구 실패: ${String(rollbackError)}`,
+                        'ERROR'
+                    );
+                }
+            }
+            throw error;
+        }
     }
 
     private async startDefinitions(definitions: ProcessDefinition[], operationId: string): Promise<void> {
@@ -388,7 +453,7 @@ export class GatewayReleaseController {
     private async stopManagedProcesses(operationId: string): Promise<void> {
         const existing = new Set((await this.processManager.list()).map((process) => process.name));
         const failures: string[] = [];
-        for (const name of [...PROCESS_NAMES].reverse()) {
+        for (const name of [...MANAGED_PROCESS_NAMES].reverse()) {
             if (!existing.has(name)) continue;
             await this.appendLog(operationId, 'switch', `${name} process를 정리합니다.`);
             try {
@@ -406,26 +471,36 @@ export class GatewayReleaseController {
     }
 
     private async waitForReadiness(operationId: string): Promise<void> {
-        await this.appendLog(operationId, 'readiness', 'Gateway API, frontend와 PM2 process readiness를 확인합니다.');
+        await this.appendLog(operationId, 'readiness', 'Gateway API, 정적 frontend와 PM2 process readiness를 확인합니다.');
         const deadline = Date.now() + this.config.readinessTimeoutMs;
         const apiUrl = `http://127.0.0.1:${this.config.gatewayApiPort}/healthz`;
-        const frontendUrl = `http://127.0.0.1:${this.config.gatewayFrontendPort}${this.config.gatewayBasePath}/`;
+        const frontendUrl =
+            this.config.frontendServeMode === 'static'
+                ? new URL(
+                      `${this.config.gatewayBasePath.replace(/\/$/u, '')}/`,
+                      this.config.frontendReadinessOrigin ?? 'http://caddy'
+                  ).toString()
+                : `http://127.0.0.1:${this.config.gatewayFrontendPort}${this.config.gatewayBasePath}/`;
+        const expectedNames = buildGatewayProcessDefinitions(this.config.workspaceRoot, this.config).map(
+            (definition) => definition.name
+        );
         while (Date.now() < deadline) {
             try {
-                const [api, frontend] = await Promise.all([this.fetchImpl(apiUrl), this.fetchImpl(frontendUrl)]);
+                const [api, frontend] = await Promise.all([
+                    this.fetchImpl(apiUrl),
+                    this.fetchImpl(frontendUrl),
+                ]);
                 const processes = await this.processManager.list();
-                const expected = processes.filter((process) =>
-                    PROCESS_NAMES.includes(process.name as (typeof PROCESS_NAMES)[number])
-                );
+                const expected = processes.filter((process) => expectedNames.includes(process.name));
                 const safe = expected.filter(
                     (process) => process.status.toLowerCase() === 'online' && (process.restartCount ?? 0) === 0
                 );
                 if (
                     api.ok &&
                     frontend.ok &&
-                    expected.length === PROCESS_NAMES.length &&
-                    safe.length === PROCESS_NAMES.length &&
-                    new Set(safe.map((process) => process.name)).size === PROCESS_NAMES.length
+                    expected.length === expectedNames.length &&
+                    safe.length === expectedNames.length &&
+                    new Set(safe.map((process) => process.name)).size === expectedNames.length
                 ) {
                     await this.appendLog(operationId, 'readiness', 'Gateway readiness 확인을 통과했습니다.');
                     return;
diff --git a/app/release-controller/src/selfUpgrade.ts b/app/release-controller/src/selfUpgrade.ts
index da023d7a..2a37e5b2 100644
--- a/app/release-controller/src/selfUpgrade.ts
+++ b/app/release-controller/src/selfUpgrade.ts
@@ -10,6 +10,7 @@ import {
     type ProcessManager,
     readReleaseManifest,
     sanitizeManagedProcessEnv,
+    sanitizeReleaseBuildEnv,
 } from '@sammo-ts/gateway-api';
 
 import type { ReleaseControllerConfig } from './config.js';
@@ -22,7 +23,7 @@ const buildReleaseControllerCommands = (
     needsInstall: boolean,
     config: ReleaseControllerConfig
 ): BuildCommand[] => {
-    const env = sanitizeManagedProcessEnv(config.baseEnv);
+    const env = sanitizeReleaseBuildEnv(config.baseEnv);
     return [
         ...(needsInstall ? [{ command: 'pnpm', args: ['install', '--frozen-lockfile'], cwd: workspaceRoot, env }] : []),
         buildTurboReleaseCommand(workspaceRoot, config.workspaceRoot, ['@sammo-ts/release-controller'], env),
@@ -56,6 +57,7 @@ export const upgradeReleaseController = async (options: {
     sourceRef: string;
     workspaceManager: GitWorkspaceManager;
     buildRunner: BuildRunner;
+    migrationRunner?: BuildRunner;
     processManager: ProcessManager;
     config: ReleaseControllerConfig;
     readinessTimeoutMs?: number;
@@ -71,7 +73,9 @@ export const upgradeReleaseController = async (options: {
         buildReleaseControllerCommands(workspace.root, workspace.needsInstall, options.config)
     );
     if (!build.ok) throw new Error(`Release controller build failed: ${build.output.slice(-4000)}`);
-    const migration = await options.buildRunner.run([buildGatewayMigrationCommand(workspace.root, options.config)]);
+    const migration = await (options.migrationRunner ?? options.buildRunner).run([
+        buildGatewayMigrationCommand(workspace.root, options.config),
+    ]);
     if (!migration.ok) throw new Error(`Gateway migration failed: ${migration.output.slice(-4000)}`);
 
     const existing = (await options.processManager.list()).find((process) => process.name === CONTROLLER_PROCESS_NAME);
diff --git a/app/release-controller/test/releaseController.test.ts b/app/release-controller/test/releaseController.test.ts
index a77e970b..d6aea019 100644
--- a/app/release-controller/test/releaseController.test.ts
+++ b/app/release-controller/test/releaseController.test.ts
@@ -43,6 +43,15 @@ const createReleaseWorkspace = async (): Promise<string> => {
             components: ['gateway-api', 'gateway-frontend', 'release-controller'],
         })
     );
+    await fs.mkdir(path.join(workspace, 'app', 'gateway-frontend', 'dist', 'assets'), { recursive: true });
+    await fs.writeFile(
+        path.join(workspace, 'app', 'gateway-frontend', 'dist', 'index.html'),
+        '<!doctype html><title>static gateway</title>'
+    );
+    await fs.writeFile(
+        path.join(workspace, 'app', 'gateway-frontend', 'dist', 'assets', 'app-deadbeef.js'),
+        'console.log("gateway")'
+    );
     return workspace;
 };
 
@@ -148,6 +157,17 @@ it('runs Gateway preview from the frontend workspace dependency', () => {
     );
 });
 
+it('omits the Vite preview process when static artifact serving is selected', () => {
+    const definitions = buildGatewayProcessDefinitions('/srv/sammo/release', {
+        ...config,
+        frontendServeMode: 'static',
+    });
+    expect(definitions.map((definition) => definition.name)).toEqual([
+        'sammo:gateway-api',
+        'sammo:gateway-orchestrator',
+    ]);
+});
+
 it('does not forward release-controller PM2 identity to Gateway processes', () => {
     const definitions = buildGatewayProcessDefinitions('/srv/sammo/release', {
         ...config,
@@ -181,6 +201,64 @@ it('rejects Gateway definitions before switching processes when Redis connection
 });
 
 describe('GatewayReleaseController', () => {
+    it('publishes the built Gateway frontend through the artifact pointer in static mode', async () => {
+        const workspace = await createReleaseWorkspace();
+        const harness = createRepository();
+        const running = new Map<string, string>();
+        const artifactRoot = path.join(workspace, 'artifact-volume');
+        const requests: string[] = [];
+        const releaseRefUpdates: Array<{ expected: string | null; next: string | null }> = [];
+        const controller = new GatewayReleaseController(
+            harness.repository,
+            {
+                resolveCommit: async () => SHA,
+                prepare: async () => ({ root: workspace, created: true, needsInstall: false }),
+                readPersistentReleaseRef: async () => OLD_SHA,
+                compareAndSwapPersistentReleaseRef: async (
+                    _ref: string,
+                    expected: string | null,
+                    next: string | null
+                ) => {
+                    releaseRefUpdates.push({ expected, next });
+                },
+            } as unknown as GitWorkspaceManager,
+            { run: async () => ({ ok: true, exitCode: 0, output: '' }) },
+            {
+                list: async () =>
+                    [...running].map(([name, cwd]) => ({ name, cwd, status: 'online', restartCount: 0 })),
+                start: async (definition) => {
+                    running.set(definition.name, definition.cwd);
+                },
+                stop: async () => {},
+                delete: async (name) => {
+                    running.delete(name);
+                },
+            },
+            {
+                ...config,
+                frontendServeMode: 'static',
+                frontendArtifactRoot: artifactRoot,
+                frontendReadinessOrigin: 'http://caddy',
+                activeReleaseGitRef: 'refs/sammo/active-gateway',
+            },
+            () => new Date('2026-08-01T00:00:00.000Z'),
+            async (input) => {
+                requests.push(String(input));
+                return new Response('', { status: 200 });
+            }
+        );
+
+        await controller.runOnce();
+
+        expect([...running.keys()].sort()).toEqual(['sammo:gateway-api', 'sammo:gateway-orchestrator']);
+        expect(await fs.readFile(path.join(artifactRoot, 'gateway', 'current', 'index.html'), 'utf8')).toContain(
+            'static gateway'
+        );
+        expect(requests).toContain('http://caddy/gateway/');
+        expect(releaseRefUpdates).toEqual([{ expected: OLD_SHA, next: SHA }]);
+        expect(harness.completions).toEqual(['SUCCEEDED']);
+    });
+
     it('protects active, rollback, and running-process worktrees while delegating bounded cleanup', async () => {
         const active = '/srv/sammo/releases/active';
         const previous = '/srv/sammo/releases/previous';
diff --git a/tools/build-scripts/publish-frontend-artifact.mjs b/tools/build-scripts/publish-frontend-artifact.mjs
new file mode 100644
index 00000000..45a2b406
--- /dev/null
+++ b/tools/build-scripts/publish-frontend-artifact.mjs
@@ -0,0 +1,38 @@
+#!/usr/bin/env node
+
+import { FrontendArtifactManager } from '../../app/gateway-api/dist/index.js';
+
+const readOptions = (args) => {
+    const options = new Map();
+    for (let index = 0; index < args.length; index += 2) {
+        const name = args[index];
+        const value = args[index + 1];
+        if (!name?.startsWith('--') || !value) {
+            throw new Error(
+                'usage: publish-frontend-artifact --artifact-root PATH --frontend-key KEY --source-root PATH --commit-sha SHA'
+            );
+        }
+        options.set(name.slice(2), value);
+    }
+    for (const required of ['artifact-root', 'frontend-key', 'source-root', 'commit-sha']) {
+        if (!options.get(required)) throw new Error(`--${required} is required`);
+    }
+    return options;
+};
+
+const options = readOptions(process.argv.slice(2));
+const manager = new FrontendArtifactManager(options.get('artifact-root'));
+const result = await manager.stageAndActivate({
+    frontendKey: options.get('frontend-key'),
+    sourceRoot: options.get('source-root'),
+    commitSha: options.get('commit-sha'),
+});
+console.log(
+    JSON.stringify({
+        frontendKey: result.manifest.frontendKey,
+        commitSha: result.manifest.commitSha,
+        digest: result.manifest.digest,
+        releaseId: result.releaseId,
+        previousReleaseId: result.previousReleaseId,
+    })
+);