chore: bump tools submodule (ports 4007/4008)

- entryPoints.websecure.http3: enable QUIC (UDP 443, alt-svc h3)
- serversTransport maxIdleConnsPerHost 2->100: reuse backend keep-alive
- forwardingTimeouts.dialTimeout 30s->3s: fail fast on dead backends
- disable version-check/anonymous-usage network chatter

.github/workflows/flakehub-publish-rolling.yaml

@@ -0,0 +1,20 @@
+name: Publish to FlakeHub
+
+on:
+  push:
+    branches: [main, master]
+  workflow_dispatch:
+
+jobs:
+  flakehub-publish:
+    runs-on: ubuntu-latest
+    permissions:
+      id-token: write
+      contents: read
+    steps:
+      - uses: actions/checkout@v6
+      - uses: DeterminateSystems/determinate-nix-action@main
+      - uses: DeterminateSystems/flakehub-push@main
+        with:
+          visibility: public
+          rolling: true

.github/workflows/nix-build.yml

@@ -0,0 +1,84 @@
+name: Nix Build & Deploy — All Services
+
+on:
+  push:
+    branches: [main]
+    paths:
+      - 'apps/**'
+      - 'infra/**'
+      - 'flake.nix'
+      - 'flake.lock'
+      - '.github/workflows/nix-build.yml'
+  workflow_dispatch:
+
+concurrency:
+  group: nix-deploy
+  cancel-in-progress: false
+
+permissions:
+  contents: read
+
+env:
+  VPS_HOST: ${{ secrets.VPS_HOST }}
+  VPS_USER: ${{ secrets.VPS_USER }}
+
+jobs:
+  build-and-deploy:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        service: [hub, scraper, tools-gateway, tools-workers, tools-frontend, llm-api]
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v7
+        with:
+          submodules: recursive
+          fetch-depth: 0
+
+      - name: Install Nix
+        uses: DeterminateSystems/nix-installer-action@v22
+        with:
+          determinate: false
+          extra-conf: |
+            sandbox = false
+            accept-flake-config = true
+
+      - name: Cache Nix
+        uses: DeterminateSystems/magic-nix-cache-action@v14
+
+      - name: Build ${{ matrix.service }}
+        id: build
+        run: |
+          nix build .#${{ matrix.service }} --impure --option sandbox false --print-build-logs
+          STORE_PATH=$(readlink result)
+          echo "store-path=$STORE_PATH" >> "$GITHUB_OUTPUT"
+          echo "✅ ${{ matrix.service }}: $STORE_PATH"
+
+      - name: Setup SSH key
+        if: github.ref == 'refs/heads/main'
+        env:
+          SSH_KEY: ${{ secrets.SSH_PRIVATE_KEY }}
+        run: |
+          mkdir -p ~/.ssh
+          echo "$SSH_KEY" > ~/.ssh/id_ed25519
+          chmod 600 ~/.ssh/id_ed25519
+          sed -i 's/\r$//' ~/.ssh/id_ed25519
+          ssh-keygen -y -f ~/.ssh/id_ed25519 >/dev/null 2>&1 || { echo "SSH key invalid"; exit 1; }
+          ssh-keyscan -H "$VPS_HOST" >> ~/.ssh/known_hosts 2>/dev/null
+
+      - name: Deploy ${{ matrix.service }} to VPS
+        if: github.ref == 'refs/heads/main'
+        run: |
+          STORE_PATH="${{ steps.build.outputs.store-path }}"
+          echo "=== Copying ${{ matrix.service }}: $STORE_PATH ==="
+          nix copy --to "ssh://$VPS_USER@$VPS_HOST" "$STORE_PATH"
+
+          echo "=== Updating profile ==="
+          ssh "$VPS_USER@$VPS_HOST" "sudo /nix/var/nix/profiles/default/bin/nix-env --profile /nix/var/nix/profiles/${{ matrix.service }} --set '$STORE_PATH'"
+
+          echo "=== Restarting service ==="
+          ssh "$VPS_USER@$VPS_HOST" "sudo systemctl restart ${{ matrix.service }}" || echo "  ⚠️ restart failed (may not be enabled yet)"
+
+          echo "✅ ${{ matrix.service }} deployed"

.gitignore

@@ -63,3 +63,4 @@ docs/todo.md
 **/vendor/
 
 .codegraph/
+result

flake.lock

@@ -0,0 +1,61 @@
+{
+  "nodes": {
+    "flake-utils": {
+      "inputs": {
+        "systems": "systems"
+      },
+      "locked": {
+        "lastModified": 1731533236,
+        "narHash": "sha256-l0KFg5HjrsfsO/JpG+r7fRrqm12kzFHyUHqHCVpMMbI=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "11707dc2f618dd54ca8739b309ec4fc024de578b",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1785301185,
+        "narHash": "sha256-eoS3KQTO0aPWXZvIaRbRAzSSHW3l5wdMFXtT1ISfoKA=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "9bc02893134c733dd85de46ee4fb2fac696b5529",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs"
+      }
+    },
+    "systems": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

@@ -0,0 +1,208 @@
+{
+  description = "Asepharyana Hub — Nix builds for infrastructure and app services";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
+    flake-utils.url = "github:numtide/flake-utils";
+  };
+
+  outputs = { self, nixpkgs, flake-utils }:
+    flake-utils.lib.eachSystem [ "x86_64-linux" ] (system:
+      let
+        pkgs = import nixpkgs {
+          inherit system;
+          config.allowUnfree = true;
+        };
+
+        # ── mkApp generator ──
+        mkApp = { name, src, buildScript, installScript, nativeBuildInputs ? [], buildInputs ? [] }:
+          pkgs.stdenv.mkDerivation {
+            inherit name src;
+
+            nativeBuildInputs = with pkgs; [
+              cacert curl gcc gnumake openssl pkg-config python3 libclang
+            ] ++ nativeBuildInputs;
+
+            buildInputs = with pkgs; [
+              nodejs openssl stdenv.cc.cc.lib libffi
+            ] ++ buildInputs;
+
+            LIBCLANG_PATH = "${pkgs.libclang.lib}/lib";
+            LD_LIBRARY_PATH = "${pkgs.libclang.lib}/lib:${pkgs.stdenv.cc.cc.lib}/lib:${pkgs.libffi}/lib";
+            NIX_ENFORCE_PURITY = "0";
+
+            SSL_CERT_FILE = "${pkgs.cacert}/etc/ssl/certs/ca-bundle.crt";
+            NODE_EXTRA_CA_CERTS = "${pkgs.cacert}/etc/ssl/certs/ca-bundle.crt";
+            NODE_ENV = "production";
+
+            phases = [ "unpackPhase" "buildPhase" "installPhase" ];
+            buildPhase = ''
+              export HOME="$TMPDIR" CARGO_HOME="$TMPDIR/.cargo-${name}"
+              SSL_CERT_FILE=${pkgs.cacert}/etc/ssl/certs/ca-bundle.crt
+            '' + buildScript;
+            installPhase = installScript;
+          };
+
+        # ── Node.js ──
+        nodejs = pkgs.nodejs-slim_22;
+        pnpm = pkgs.pnpm.override { inherit nodejs; };
+
+        # ── Common Rust build deps ──
+        cargoDeps = with pkgs; [ rustc cargo clang cmake pkg-config openssl.dev zlib ];
+
+        # ── Submodule repos — URLs from .gitmodules ──
+        submoduleRepos = {
+          hub = "https://github.com/asepharyana/asepharyana-hub-hub.git";
+          scraper = "https://github.com/asepharyana/asepharyana-hub-scraper.git";
+          tools = "https://github.com/asepharyana/asepharyana-hub-tools.git";
+          llm-api = "https://github.com/asepharyana/asepharyana-hub-llm-api.git";
+        };
+
+        # ── Fetch submodule source ──
+        submoduleSrc = name: builtins.fetchGit {
+          url = submoduleRepos.${name};
+          rev = if name == "hub" then "b007ced615dcc78392fc938350a23e8f022d83b7"
+               else if name == "scraper" then "62aa5b0e52859afe3ba9de1c7b11cfe2dacf6c2c"
+               else if name == "tools" then "3956b90c3ce39ffa7ffba8084937f20e11364d6b"
+               else if name == "llm-api" then "67861f384bd4f64d5236a9608b33c965fbebbc7f"
+               else "HEAD";
+          submodules = true;
+        };
+
+        # ─── App Derivations ───
+        hub = mkApp {
+          name = "hub-0.1.0";
+          src = submoduleSrc "hub";
+
+          nativeBuildInputs = with pkgs; [ bun ];
+
+          buildScript = ''
+            echo "=== Installing dependencies ==="
+            bun install 2>&1
+            echo "=== Building Next.js ==="
+            bun run build 2>&1
+          '';
+
+          installScript = ''
+            mkdir -p $out/share/hub $out/bin
+            cp -r .next $out/share/hub/
+            cp -r public $out/share/hub/ 2>/dev/null || true
+            cp package.json $out/share/hub/
+            cp -r node_modules $out/share/hub/
+            cat > $out/bin/hub << WRAPPER
+#!${pkgs.runtimeShell}
+exec ${pkgs.bun}/bin/bun run --cwd $out/share/hub start
+WRAPPER
+            chmod +x $out/bin/hub
+          '';
+        };
+
+        scraper = mkApp {
+          name = "scraper-0.1.0";
+          src = submoduleSrc "scraper";
+          nativeBuildInputs = cargoDeps;
+
+          buildScript = ''
+            echo "=== Building scraper ==="
+            cargo build --release 2>&1
+          '';
+
+          installScript = ''
+            mkdir -p $out/bin
+            cp target/release/scraper $out/bin/scraper
+          '';
+        };
+
+        tools-gateway = mkApp {
+          name = "tools-gateway-0.1.0";
+          src = submoduleSrc "tools";
+          nativeBuildInputs = cargoDeps ++ [ pkgs.tesseract ];
+
+          buildScript = ''
+            cd backend
+            echo "=== Building tools-gateway ==="
+            cargo build --release --features tesseract --bin tools-gateway 2>&1
+          '';
+
+          installScript = ''
+            mkdir -p $out/bin
+            cp target/release/tools-gateway $out/bin/tools-gateway
+          '';
+        };
+
+        tools-workers = mkApp {
+          name = "tools-workers-0.1.0";
+          src = submoduleSrc "tools";
+          nativeBuildInputs = cargoDeps ++ [ pkgs.tesseract pkgs.leptonica ];
+
+          buildScript = ''
+            cd backend
+            echo "=== Building tools-workers ==="
+            cargo build --release --features tesseract --bin tools-workers 2>&1
+          '';
+          installScript = ''
+            mkdir -p $out/bin
+            cp target/release/tools-workers $out/bin/tools-workers
+          '';
+        };
+
+        tools-frontend = mkApp {
+          name = "tools-frontend-0.1.0";
+          src = submoduleSrc "tools";
+          nativeBuildInputs = with pkgs; [ bun ];
+
+          buildScript = ''
+            cd frontend
+            echo "=== Installing dependencies ==="
+            bun install 2>&1
+            echo "=== Building Next.js ==="
+            bun run build 2>&1
+          '';
+
+          installScript = ''
+            mkdir -p $out/share/tools-frontend $out/bin
+            cp -r .next $out/share/tools-frontend/
+            cp -r public $out/share/tools-frontend/ 2>/dev/null || true
+            cp package.json $out/share/tools-frontend/
+            cp -r node_modules $out/share/tools-frontend/
+            cat > $out/bin/tools-frontend << WRAPPER
+#!${pkgs.runtimeShell}
+exec ${pkgs.bun}/bin/bun run --cwd $out/share/tools-frontend start
+WRAPPER
+            chmod +x $out/bin/tools-frontend
+          '';
+        };
+
+        llm-api = mkApp {
+          name = "llm-api-0.1.0";
+          src = submoduleSrc "llm-api";
+          nativeBuildInputs = cargoDeps ++ [ pkgs.cmake pkgs.gcc ];
+
+          buildScript = ''
+            echo "=== Building llm-api ==="
+            cargo build --release 2>&1
+          '';
+
+          installScript = ''
+            mkdir -p $out/bin
+            cp target/release/llm-api $out/bin/llm-api
+          '';
+        };
+
+      in
+      {
+        packages = {
+          inherit hub scraper tools-gateway tools-workers tools-frontend llm-api;
+          default = hub;
+        };
+
+        apps.hub = {
+          type = "app";
+          program = "${hub}/bin/hub";
+        };
+
+        devShells.default = pkgs.mkShell {
+          buildInputs = with pkgs; [ nodejs-slim_22 bun pnpm rustc cargo ];
+        };
+      });
+}

infra/compose/hub.yml.bak

@@ -1,7 +1,7 @@
 services:
   hub:
     container_name: hub
-    image: ghcr.io/asepharyana/asepharyana-hub/hub:sha-22e8a87
+    image: ghcr.io/asepharyana/asepharyana-hub/hub:sha-ac25a51
     restart: always
     networks:
       app-shared-net:

infra/compose/llm-api.yml.bak

@@ -1,7 +1,7 @@
 services:
   llm-api:
     container_name: llm-api
-    image: ghcr.io/asepharyana/asepharyana-hub/llm-api:sha-e953c3c
+    image: ghcr.io/asepharyana/asepharyana-hub/llm-api:sha-43f0df4
     restart: always
     networks:
       app-shared-net:
@@ -10,7 +10,7 @@ services:
     env_file:
       - ../../.env
     environment:
-      - MODEL_PATH=/models/MiniCPM-V-4.6-Q4_K_M.gguf
+      - MODEL_PATH=/models/MiniCPM5-1B-Claude-Opus-Fable5-V2-Thinking-Q8_0.gguf
       - API_KEY=${LLM_API_KEY:-}
     volumes:
       - /root/models/gguf:/models:ro

infra/compose/scraper.yml.bak

@@ -1,7 +1,7 @@
 services:
   scraper-api:
     container_name: scraper-api
-    image: ghcr.io/asepharyana/asepharyana-hub/scraper-api:sha-e953c3c
+    image: ghcr.io/asepharyana/asepharyana-hub/scraper-api:sha-2459541
     restart: always
     depends_on:
       nats:

infra/compose/tools.yml.bak

@@ -1,7 +1,7 @@
 services:
   tools:
     container_name: tools
-    image: ghcr.io/asepharyana/asepharyana-hub/tools:sha-e953c3c
+    image: ghcr.io/asepharyana/asepharyana-hub/tools:sha-ac25a51
     restart: always
     networks:
       app-shared-net:

infra/compose/traefik.yml

@@ -13,6 +13,7 @@ services:
     ports:
       - '80:80'
       - '443:443'
+      - '443:443/udp'
     networks:
       - app-shared-net
     extra_hosts:
@@ -45,6 +46,13 @@ services:
       - '--entryPoints.websecure.transport.lifeCycle.requestAcceptGraceTimeout=15s'
       - '--entryPoints.websecure.transport.lifeCycle.graceTimeOut=10s'
       - '--entryPoints.websecure.address=:443'
+      - '--entryPoints.websecure.http3=true'
+      # ── Response speed tuning ──
+      - '--serversTransport.maxIdleConnsPerHost=100'
+      - '--serversTransport.forwardingTimeouts.dialTimeout=3s'
+      - '--serversTransport.forwardingTimeouts.idleConnTimeout=180s'
+      - '--global.checkNewVersion=false'
+      - '--global.sendAnonymousUsage=false'
       - '--experimental.plugins.real-ip.moduleName=github.com/soulbalz/traefik-real-ip'
       - '--experimental.plugins.real-ip.version=v1.0.3'
       - '--experimental.plugins.blockpath.moduleName=github.com/traefik/plugin-blockpath'
@@ -68,7 +76,7 @@ services:
       - GOGC=200
     volumes:
       - /var/run/docker.sock:/var/run/docker.sock:ro
-      - ${TRAEFIK_CONFIG_PATH:-/root/asepharyana-hub/infra/traefik/dynamic}:/etc/traefik/dynamic:ro
+      - ${TRAEFIK_CONFIG_PATH:-/home/code/asepharyana-hub/infra/traefik/dynamic}:/etc/traefik/dynamic:ro
       - ${TRAEFIK_CERT_MY_ID_PEM:-/root/asepharyana.my.id.pem}:/etc/traefik/certs/asepharyana.my.id.pem:ro
       - ${TRAEFIK_CERT_MY_ID_KEY:-/root/asepharyana.my.id.key}:/etc/traefik/certs/asepharyana.my.id.key:ro
       - ${TRAEFIK_CERT_WEB_ID_PEM:-/root/asepharyana.web.id.pem}:/etc/traefik/certs/asepharyana.web.id.pem:ro

infra/otel/otel-collector-config.yml

@@ -54,3 +54,7 @@ service:
       receivers: [otlp]
       processors: [memory_limiter, batch, attributes]
       exporters: [prometheus, debug]
+    logs:
+      receivers: [otlp]
+      processors: [memory_limiter, batch, attributes]
+      exporters: [debug]

infra/traefik/dynamic/apps.yaml

@@ -27,7 +27,7 @@ http:
         - websecure
       tls: {}
       middlewares:
-        - common-chain@file
+        - llm-chain@file
       service: llm-api-service
 
     # ── Tools (Document Scanner & Media Processing) ──
@@ -50,28 +50,178 @@ http:
         - common-chain@file
       service: jaeger-service
 
+    # ── 9Router (AI routing gateway) ──
+    9router:
+      rule: 'Host(`9router.asepharyana.my.id`)'
+      entryPoints:
+        - websecure
+      tls: {}
+      middlewares:
+        - common-chain@file
+      service: 9router-service
+
+    # ── PR-Agent (GitHub App webhook) ──
+    pr-agent:
+      rule: 'Host(`pr-agent.asepharyana.my.id`)'
+      entryPoints:
+        - websecure
+      tls: {}
+      middlewares:
+        - common-chain@file
+      service: pr-agent-service
+
+    # ── LIDM Frontend ──
+    lidm-frontend:
+      rule: 'Host(`lidm.asepharyana.my.id`)'
+      entryPoints:
+        - websecure
+      tls: {}
+      middlewares:
+        - common-chain@file
+      service: lidm-frontend-service
+
+    # ── LIDM Backend API ──
+    lidm-backend:
+      rule: 'Host(`lidm-api.asepharyana.my.id`)'
+      entryPoints:
+        - websecure
+      tls: {}
+      middlewares:
+        - common-chain@file
+      service: lidm-backend-service
+
+    # ── ZeaVis Edu Frontend ──
+    zeavisedu:
+      rule: 'Host(`zeavisedu.asepharyana.my.id`)'
+      entryPoints:
+        - websecure
+      tls: {}
+      middlewares:
+        - common-chain@file
+      service: zeavisedu-service
+
+    # ── ZeaVis Edu API ──
+    api-zeavisedu:
+      rule: 'Host(`api-zeavisedu.asepharyana.my.id`)'
+      entryPoints:
+        - websecure
+      tls: {}
+      middlewares:
+        - common-chain@file
+      service: api-zeavisedu-service
+
+    # ── ZeaVis Edu ML Service ──
+    ml-zeavisedu:
+      rule: 'Host(`ml-zeavisedu.asepharyana.my.id`)'
+      entryPoints:
+        - websecure
+      tls: {}
+      middlewares:
+        - common-chain@file
+      service: ml-zeavisedu-service
+
+    # ── Hermes Dashboard ──
+    hermes-dashboard:
+      rule: 'Host(`dashboard.asepharyana.my.id`)'
+      entryPoints:
+        - websecure
+      tls: {}
+      middlewares:
+        - common-chain@file
+      service: hermes-dashboard-service
+
+    # ── GMW Discord Automod Dashboard (Nix: gmw-proxy on 8080) ──
+    gmw:
+      rule: 'Host(`imphnen.asepharyana.my.id`)'
+      entryPoints:
+        - websecure
+      tls: {}
+      middlewares:
+        - common-chain@file
+      service: gmw-service
+
+    # ── TeleUploader (S3 to Telegram Bridge, Nix: bun on 3000) ──
+    teleuploader:
+      rule: 'Host(`upload.asepharyana.my.id`) || Host(`upload.asepharyana.web.id`)'
+      entryPoints:
+        - websecure
+      tls: {}
+      middlewares:
+        - upload-chain@file
+      service: teleuploader-service
+
   services:
     hub-service:
       loadBalancer:
         servers:
-          - url: 'http://hub:3000'
+          - url: 'http://host.docker.internal:3099'
 
     scraper-service:
       loadBalancer:
         servers:
-          - url: 'http://scraper-api:4091'
+          - url: 'http://host.docker.internal:4091'
 
     tools-service:
       loadBalancer:
         servers:
-          - url: 'http://tools:3000'
+          - url: 'http://host.docker.internal:3500'
 
     llm-api-service:
       loadBalancer:
         servers:
-          - url: 'http://llm-api:8080'
+          - url: 'http://host.docker.internal:8082'
 
     jaeger-service:
       loadBalancer:
         servers:
           - url: 'http://jaeger:16686'
+
+    9router-service:
+      loadBalancer:
+        servers:
+          - url: 'http://host.docker.internal:20128'
+
+    pr-agent-service:
+      loadBalancer:
+        servers:
+          - url: 'http://host.docker.internal:3002'
+
+    lidm-frontend-service:
+      loadBalancer:
+        servers:
+          - url: 'http://host.docker.internal:3100'
+
+    lidm-backend-service:
+      loadBalancer:
+        servers:
+          - url: 'http://host.docker.internal:3101'
+
+    zeavisedu-service:
+      loadBalancer:
+        servers:
+          - url: 'http://host.docker.internal:8088'
+
+    api-zeavisedu-service:
+      loadBalancer:
+        servers:
+          - url: 'http://host.docker.internal:3200'
+
+    ml-zeavisedu-service:
+      loadBalancer:
+        servers:
+          - url: 'http://host.docker.internal:8200'
+
+    hermes-dashboard-service:
+      loadBalancer:
+        servers:
+          - url: 'http://host.docker.internal:9119'
+
+    gmw-service:
+      loadBalancer:
+        servers:
+          - url: 'http://host.docker.internal:8080'
+
+    teleuploader-service:
+      loadBalancer:
+        servers:
+          - url: 'http://host.docker.internal:3000'

infra/traefik/dynamic/middlewares.yaml

@@ -61,6 +61,14 @@ http:
             - "^/wp-login\\.php"
             - "^/config\\.php"
 
+    # ── LLM Stream Chain (no buffer/compress — SSE needs real-time) ──
+    llm-chain:
+      chain:
+        middlewares:
+          - secure-headers
+          - retry
+          - rate-limit
+
     # ── Common Chain ──
     common-chain:
       chain:
@@ -70,3 +78,23 @@ http:
           - retry
           - rate-limit
           - buffer
+
+    # ── TeleUploader Chain (2GB body buffer — large file uploads) ──
+    upload-buffer:
+      buffering:
+        maxRequestBodyBytes: 2147483648
+        maxResponseBodyBytes: 2147483648
+        memRequestBodyBytes: 1048576
+        memResponseBodyBytes: 1048576
+    upload-rate-limit:
+      rateLimit:
+        average: 300
+        burst: 100
+        period: 1m
+    upload-chain:
+      chain:
+        middlewares:
+          - secure-headers
+          - retry
+          - upload-rate-limit
+          - upload-buffer

scripts/nix-deploy.sh

@@ -0,0 +1,28 @@
+#!/usr/bin/env bash
+# ── Nix Deploy — VPS-side script ──
+# Runs after `nix copy --to ssh://VPS ./result` from CI
+# Usage: sudo ./deploy.sh <service-name>
+set -euo pipefail
+
+SERVICE="$1"
+PROFILE="/nix/var/nix/profiles/${SERVICE}"
+
+# Find the latest store path for this service
+LATEST=$(ls -1d /nix/store/*-"${SERVICE}"-* 2>/dev/null | tail -1)
+if [ -z "$LATEST" ]; then
+  echo "ERROR: No store path found for ${SERVICE}"
+  exit 1
+fi
+
+# Update profile
+/nix/var/nix/profiles/default/bin/nix-env --profile "$PROFILE" --set "$LATEST"
+
+# Restart service
+systemctl daemon-reload
+systemctl enable --now "${SERVICE}" 2>/dev/null || systemctl restart "${SERVICE}"
+
+echo "Deployed ${SERVICE}: ${LATEST}"
+systemctl is-active "${SERVICE}"
+
+# Collect garbage (safe: only removes unreachable paths)
+# nix-collect-garbage -d 2>/dev/null || true