diff --git a/.github/workflows/deploy-cloudflare-pages.yml b/.github/workflows/deploy-cloudflare-pages.yml
deleted file mode 100644
index 21f818c..0000000
--- a/.github/workflows/deploy-cloudflare-pages.yml
+++ /dev/null
@@ -1,32 +0,0 @@
-name: Deploy to Cloudflare Pages
-
-on:
-  push:
-    branches: [master]
-  workflow_dispatch:
-
-permissions:
-  contents: read
-  deployments: write
-
-concurrency:
-  group: cf-pages
-  cancel-in-progress: true
-
-jobs:
-  deploy:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-node@v4
-        with:
-          node-version: 20
-          cache: npm
-      - run: npm ci
-      - run: npm run build:cf
-      - name: Publish to Cloudflare Pages
-        uses: cloudflare/wrangler-action@v3
-        with:
-          apiToken: ${{ secrets.CLOUDFLARE_API_TOKEN }}
-          accountId: ${{ secrets.CLOUDFLARE_ACCOUNT_ID }}
-          command: pages deploy out --project-name=loto --branch=${{ github.ref_name }}
diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
deleted file mode 100644
index d9382f8..0000000
--- a/.github/workflows/deploy.yml
+++ /dev/null
@@ -1,40 +0,0 @@
-name: Deploy to GitHub Pages
-
-on:
-  push:
-    branches: [master]
-  workflow_dispatch:
-
-permissions:
-  contents: read
-  pages: write
-  id-token: write
-
-concurrency:
-  group: pages
-  cancel-in-progress: true
-
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-node@v4
-        with:
-          node-version: 20
-          cache: npm
-      - run: npm ci
-      - run: npm run build:gh
-      - uses: actions/upload-pages-artifact@v3
-        with:
-          path: out
-
-  deploy:
-    needs: build
-    runs-on: ubuntu-latest
-    environment:
-      name: github-pages
-      url: ${{ steps.deployment.outputs.page_url }}
-    steps:
-      - id: deployment
-        uses: actions/deploy-pages@v4
diff --git a/README.md b/README.md
index 2b8bbcb..679bfaf 100644
--- a/README.md
+++ b/README.md
@@ -30,4 +30,4 @@ Use `/absproxy/{port}/`, **not** `/proxy/{port}/` — the latter strips the path
 npm run build
 ```
 
-Static export to `out/`. Deployed to GitHub Pages from `master` via `.github/workflows/deploy.yml`.
+Static export to `out/`. Deployed to Cloudflare Pages from `master` (set up via the CF dashboard — see `docs/deployment-guide.md`).
diff --git a/docs/deployment-guide.md b/docs/deployment-guide.md
index ec520a3..4284fbb 100644
--- a/docs/deployment-guide.md
+++ b/docs/deployment-guide.md
@@ -2,38 +2,25 @@
 
 ## Build Profiles
 
-Two named profiles select the basePath for the deploy target:
-
-| Script | basePath | Target URL |
+| Script | basePath | Target |
 |---|---|---|
-| `npm run build:gh` | `/loto` | `https://tiennm99.github.io/loto` |
-| `npm run build:cf` | `""` (root) | `https://loto.miti99.com` |
-| `npm run build` | `/loto` | legacy default — same as `build:gh` |
+| `npm run build` | `""` (root) | Cloudflare Pages → `https://loto.miti99.com` |
+| `npm run build:gh` | `/loto` | GitHub Pages → `https://tiennm99.github.io/loto` (manual fallback) |
 
-Implementation: `next.config.mjs` reads `BUILD_PROFILE` (`gh` or `cf`) and
-picks the basePath. `NEXT_BASE_PATH` overrides everything for one-off
-custom-domain builds.
+Implementation: `next.config.mjs` reads `BUILD_PROFILE`. Default is empty
+basePath; `BUILD_PROFILE=gh` switches to `/loto`. `NEXT_BASE_PATH`
+overrides everything for one-off custom-domain builds.
 
-## Production Deployment
+## Production Deployment — Cloudflare Pages
 
-### GitHub Pages
+Primary deploy. Set up via the Cloudflare dashboard once; subsequent
+pushes to `master` trigger automatic builds + deploys.
 
-Auto-deploys from `master` via `.github/workflows/deploy.yml`. Runs
-`npm run build:gh`, then uploads `out/` as a Pages artifact.
-
-URL: `https://tiennm99.github.io/loto`. basePath `/loto` because GH Pages
-serves the project under that path prefix.
-
-### Cloudflare Pages
-
-Custom domain target: `https://loto.miti99.com` (basePath `""`).
-
-**Option A — Dashboard:**
 1. dash.cloudflare.com → Workers & Pages → Create → Pages → Connect to Git
    → pick the repo
 2. Build settings:
    - Framework preset: `Next.js (Static HTML Export)`
-   - Build command: `npm run build:cf`
+   - Build command: `npm run build`
    - Build output directory: `out`
    - Production branch: `master`
 3. After first deploy, add the custom domain:
@@ -41,28 +28,20 @@ Custom domain target: `https://loto.miti99.com` (basePath `""`).
    records to add at your registrar (or auto-configures if `miti99.com` is
    on Cloudflare DNS).
 
-**Option B — GitHub Actions (`.github/workflows/deploy-cloudflare-pages.yml`):**
+No GitHub Actions involved; no repo secrets needed.
 
-Add two repo secrets:
-- `CLOUDFLARE_API_TOKEN` — dash → My Profile → API Tokens → Create with the
-  `Pages — Edit` template
-- `CLOUDFLARE_ACCOUNT_ID` — visible in the dash sidebar
+## Manual GH Pages Deploy (optional)
 
-The workflow runs `npm run build:cf`, then publishes `out/` via
-`cloudflare/wrangler-action@v3` to a Pages project named `loto`. Custom
-domain setup is the same dashboard step as Option A — done once.
-
-The two providers can run in parallel — different artifacts, different
-URLs. Drop whichever you stop wanting by deleting its workflow file.
-
-### Manual Deploy
+If you ever want to push a build to GitHub Pages by hand:
 
 ```bash
-npm run build:gh   # for GH Pages
-npm run build:cf   # for CF Pages / any root-served host
-# out/ directory ready for upload to any static host
+npm run build:gh
+# upload out/ to the GH Pages target
 ```
 
+The repo no longer auto-deploys to GH Pages — there's no GitHub Actions
+workflow. CF Pages is the only auto-deploy target.
+
 ## Development Environment
 
 ### Local Dev
diff --git a/next.config.mjs b/next.config.mjs
index 2ef92dd..a1bff71 100644
--- a/next.config.mjs
+++ b/next.config.mjs
@@ -1,9 +1,8 @@
-const isProd = process.env.NODE_ENV === "production";
 const isCodeserver = process.env.NEXT_DEV_PROFILE === "codeserver";
 
 // Build profiles select basePath for the deploy target:
-//   gh — GitHub Pages, served at tiennm99.github.io/loto
-//   cf — Cloudflare Pages, served at loto.miti99.com (custom domain, root)
+//   (default) — Cloudflare Pages, served at loto.miti99.com (root)
+//   gh        — GitHub Pages, served at tiennm99.github.io/loto
 const buildProfile = process.env.BUILD_PROFILE;
 
 // In dev under code-server's reverse proxy, basePath/assetPrefix must match
@@ -27,19 +26,12 @@ const cs = isCodeserver ? codeserverConfig() : null;
 // basePath resolution order (first non-null wins):
 //   1. NEXT_BASE_PATH — explicit override (escape hatch for forks / custom domains)
 //   2. codeserver dev profile
-//   3. BUILD_PROFILE=gh|cf — explicit deploy target
-//   4. NODE_ENV=production — legacy fallback (bare `npm run build` → GH Pages)
-//   5. local dev — empty
+//   3. BUILD_PROFILE=gh — explicit GH Pages target
+//   4. default — empty (CF Pages / local dev / any root-served host)
 const basePath =
   process.env.NEXT_BASE_PATH ??
   cs?.basePath ??
-  (buildProfile === "gh"
-    ? "/loto"
-    : buildProfile === "cf"
-      ? ""
-      : isProd
-        ? "/loto"
-        : "");
+  (buildProfile === "gh" ? "/loto" : "");
 
 const nextConfig = {
   output: "export",
diff --git a/package.json b/package.json
index 905587e..4975871 100644
--- a/package.json
+++ b/package.json
@@ -7,7 +7,6 @@
     "dev:codeserver": "NEXT_DEV_PROFILE=codeserver next dev -H 0.0.0.0",
     "build": "next build",
     "build:gh": "BUILD_PROFILE=gh next build",
-    "build:cf": "BUILD_PROFILE=cf next build",
     "start": "next start",
     "lint": "eslint"
   },