diff --git a/nix/packages.nix b/nix/packages.nix
index eb50d4a17b34..4c467b56ee22 100644
--- a/nix/packages.nix
+++ b/nix/packages.nix
@@ -13,6 +13,38 @@
           !(pkgs.lib.hasInfix "/index-cache/" path);
       };
 
+      # Build the Vite/React web dashboard frontend.
+      # Output lands in hermes_cli/web_dist which the FastAPI server serves
+      # as a static SPA (see hermes_cli/web_server.py:WEB_DIST).
+      hermesWeb = pkgs.buildNpmPackage {
+        pname = "hermes-web";
+        version = (builtins.fromTOML (builtins.readFile ../pyproject.toml)).project.version;
+        src = ../web;
+        npmDepsHash = "sha256-Y0pOzdFG8BLjfvCLmsvqYpjxFjAQabXp1i7X9W/cCU4=";
+        # vite build writes to ../hermes_cli/web_dist relative to web/;
+        # redirect into $out instead.
+        postPatch = ''
+          substituteInPlace vite.config.ts \
+            --replace-warn '../hermes_cli/web_dist' "$out"
+        '';
+        installPhase = ''
+          runHook preInstall
+          npm run build
+          runHook postInstall
+        '';
+        dontNpmBuild = true;  # we run the build in installPhase after substituteInPlace
+      };
+
+      # The venv's hermes_cli is in the read-only Nix store and lacks web_dist.
+      # Create a thin overlay directory that shadows hermes_cli with web_dist
+      # present, then prepend it via PYTHONPATH so Python finds it first.
+      hermesSiteOverlay = pkgs.runCommand "hermes-site-overlay" { } ''
+        venvSite=$(echo ${hermesVenv}/lib/python3.*/site-packages)
+        mkdir -p $out/lib/hermes-overlay
+        cp -rL --no-preserve=mode $venvSite/hermes_cli $out/lib/hermes-overlay/hermes_cli
+        ln -s ${hermesWeb} $out/lib/hermes-overlay/hermes_cli/web_dist
+      '';
+
       runtimeDeps = with pkgs; [
         nodejs_20 ripgrep git openssh ffmpeg tirith
       ];
@@ -36,7 +68,8 @@
           ${pkgs.lib.concatMapStringsSep "\n" (name: ''
             makeWrapper ${hermesVenv}/bin/${name} $out/bin/${name} \
               --suffix PATH : "${runtimePath}" \
-              --set HERMES_BUNDLED_SKILLS $out/share/hermes-agent/skills
+              --set HERMES_BUNDLED_SKILLS $out/share/hermes-agent/skills \
+              --prefix PYTHONPATH : "${hermesSiteOverlay}/lib/hermes-overlay"
           '') [ "hermes" "hermes-agent" "hermes-acp" ]}
 
           runHook postInstall
diff --git a/uv.lock b/uv.lock
index 45efc2d93ff6..88b03e6564a1 100644
--- a/uv.lock
+++ b/uv.lock
@@ -1699,7 +1699,7 @@ wheels = [
 
 [[package]]
 name = "hermes-agent"
-version = "0.8.0"
+version = "0.9.0"
 source = { editable = "." }
 dependencies = [
     { name = "anthropic" },
@@ -1737,6 +1737,7 @@ all = [
     { name = "dingtalk-stream" },
     { name = "discord-py", extra = ["voice"] },
     { name = "elevenlabs" },
+    { name = "fastapi" },
     { name = "faster-whisper" },
     { name = "honcho-ai" },
     { name = "lark-oapi" },
@@ -1756,6 +1757,7 @@ all = [
     { name = "slack-bolt" },
     { name = "slack-sdk" },
     { name = "sounddevice" },
+    { name = "uvicorn", extra = ["standard"] },
 ]
 cli = [
     { name = "simple-term-menu" },
@@ -1842,6 +1844,10 @@ voice = [
     { name = "numpy" },
     { name = "sounddevice" },
 ]
+web = [
+    { name = "fastapi" },
+    { name = "uvicorn", extra = ["standard"] },
+]
 yc-bench = [
     { name = "yc-bench", marker = "python_full_version >= '3.12'" },
 ]
@@ -1866,6 +1872,7 @@ requires-dist = [
     { name = "exa-py", specifier = ">=2.9.0,<3" },
     { name = "fal-client", specifier = ">=0.13.1,<1" },
     { name = "fastapi", marker = "extra == 'rl'", specifier = ">=0.104.0,<1" },
+    { name = "fastapi", marker = "extra == 'web'", specifier = ">=0.104.0,<1" },
     { name = "faster-whisper", marker = "extra == 'voice'", specifier = ">=1.0.0,<2" },
     { name = "fire", specifier = ">=0.7.1,<1" },
     { name = "firecrawl-py", specifier = ">=4.16.0,<5" },
@@ -1894,6 +1901,7 @@ requires-dist = [
     { name = "hermes-agent", extras = ["sms"], marker = "extra == 'all'" },
     { name = "hermes-agent", extras = ["tts-premium"], marker = "extra == 'all'" },
     { name = "hermes-agent", extras = ["voice"], marker = "extra == 'all'" },
+    { name = "hermes-agent", extras = ["web"], marker = "extra == 'all'" },
     { name = "honcho-ai", marker = "extra == 'honcho'", specifier = ">=2.0.1,<3" },
     { name = "httpx", extras = ["socks"], specifier = ">=0.28.1,<1" },
     { name = "jinja2", specifier = ">=3.1.5,<4" },
@@ -1929,10 +1937,11 @@ requires-dist = [
     { name = "tenacity", specifier = ">=9.1.4,<10" },
     { name = "tinker", marker = "extra == 'rl'", git = "https://github.com/thinking-machines-lab/tinker.git" },
     { name = "uvicorn", extras = ["standard"], marker = "extra == 'rl'", specifier = ">=0.24.0,<1" },
+    { name = "uvicorn", extras = ["standard"], marker = "extra == 'web'", specifier = ">=0.24.0,<1" },
     { name = "wandb", marker = "extra == 'rl'", specifier = ">=0.15.0,<1" },
     { name = "yc-bench", marker = "python_full_version >= '3.12' and extra == 'yc-bench'", git = "https://github.com/collinear-ai/yc-bench.git" },
 ]
-provides-extras = ["modal", "daytona", "dev", "messaging", "cron", "slack", "matrix", "cli", "tts-premium", "voice", "pty", "honcho", "mcp", "homeassistant", "sms", "acp", "mistral", "termux", "dingtalk", "feishu", "rl", "yc-bench", "all"]
+provides-extras = ["modal", "daytona", "dev", "messaging", "cron", "slack", "matrix", "cli", "tts-premium", "voice", "pty", "honcho", "mcp", "homeassistant", "sms", "acp", "mistral", "termux", "dingtalk", "feishu", "web", "rl", "yc-bench", "all"]
 
 [[package]]
 name = "hf-transfer"