743c55efa3
* fix(desktop): stop file tree throwing "two HTML5 backends" on remount
The Agent Workspace file tree (react-arborist) shows a permanent "TREE ERROR"
with `[error-boundary:file-tree] Cannot have two HTML5 backends at the same
time.` react-arborist mounts its own react-dnd DndProvider + HTML5Backend per
<Tree>. react-dnd v14 keeps that manager on a global, ref-counted singleton
context and nulls it when the count reaches 0. The tree is keyed on
`${cwd}:${collapseNonce}`, so changing folder / collapsing forces a fresh
<Tree>; during the remount the singleton can be torn down and recreated while
the previous HTML5Backend still owns `window.__isReactDndHtml5Backend`, so the
new backend's setup() throws. The error boundary then sticks, because "Try
again" just remounts into the same race.
Pass arborist a stable, app-lifetime `dndManager` (new getFileTreeDndManager
singleton) so it reuses one backend for the life of the app and never
double-claims the window flag. Drag/drop is already disabled on this tree;
this only changes how the (unused) dnd backend is provisioned.
Promotes dnd-core and react-dnd-html5-backend to explicit deps (already present
transitively via react-arborist's react-dnd 14.x line, so they dedupe to one
instance).
* fix(nix): bump npmDepsHash for desktop dnd deps
Adding dnd-core / react-dnd-html5-backend changed the workspace
package-lock.json, so the single workspace-root npmDepsHash in
nix/lib.nix was stale and the nix build failed. Regenerate it
(hash from the failing nix CI job's 'got:' value).
* fix(nix): update npmDepsHash for merged lockfile
After merging main, the workspace lockfile combined main's dep
changes with the desktop dnd additions, so the npmDepsHash needed
recomputing again. Hash from the nix lockfile-check job.
* fix(nix): use fetchNpmDeps hash for desktop dnd lockfile
prefetch-npm-deps reported sha256-lVnybH9RE/... but fetchNpmDeps
wants sha256-mYgKXE/FL4hnkrEvpVv+ULM/oeyIfO2AM9Ol8OrfWm0= for the
merged workspace lockfile. Use the nix build 'got:' hash so CI passes.
---------
Co-authored-by: Brooklyn Nicholson <brooklyn.bb.nicholson@gmail.com>
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|---|---|---|
| .. | ||
| assets | ||
| electron | ||
| pr-assets | ||
| public | ||
| scripts | ||
| src | ||
| .prettierrc | ||
| components.json | ||
| DESIGN.md | ||
| eslint.config.mjs | ||
| index.html | ||
| package.json | ||
| preview-demo.html | ||
| README.md | ||
| tsconfig.json | ||
| vite.config.ts | ||
Hermes Desktop ☤
The native desktop app for Hermes Agent — the self-improving AI agent from Nous Research. Same agent, same skills, same memory as the CLI and gateway, in a polished native window — chat with streaming tool output, side-by-side previews, a file browser, voice, and settings, no terminal required. Available for macOS, Windows, and Linux.
| Chat with the full agent | Streaming responses, live tool activity, structured tool summaries, and the same conversation history as every other Hermes surface. |
| Side-by-side previews | Render web pages, files, and tool outputs in a right-hand pane while you keep chatting. |
| File browser | Explore and preview the working directory without leaving the app. |
| Voice | Talk to Hermes and hear it back. |
| Settings & onboarding | Manage providers, models, tools, and credentials from a real UI. First-run setup gets you to your first message in seconds. |
| Stays current | Built-in updates pull the latest agent and rebuild the app in place. |
Install
Install with Hermes (recommended)
Already have the Hermes CLI? Just run:
hermes desktop
It builds and launches the GUI against your existing install — same config, keys, sessions, and skills. On first launch Hermes walks you through picking a provider and model; nothing else to configure.
Prebuilt installers
Prebuilt installers are built and distributed via the Hermes Desktop website..
Updating
The app checks for updates in the background and offers a one-click update when one is ready. You can also update any time from the CLI:
hermes update
Requirements
The installer handles everything for you (Python 3.11+, a portable Git, ripgrep).
Development
Want to hack on the app itself? Install workspace deps from the repo root once, then run the dev server from this directory:
npm install # from repo root — links apps/desktop, web, apps/shared
cd apps/desktop
npm run dev # Vite renderer + Electron, which boots the Python backend
Point the app at a specific source checkout, or sandbox it away from your real config:
HERMES_DESKTOP_HERMES_ROOT=/path/to/clone npm run dev
HERMES_HOME=/tmp/throwaway npm run dev
npm run dev:fake-boot # exercise the startup overlay with deterministic delays
Building installers
npm run dist:mac # DMG + zip
npm run dist:win # NSIS + MSI
npm run dist:linux # AppImage + deb + rpm
npm run pack # unpacked app under release/ (no installer)
Installers are built and uploaded to GitHub Releases manually. macOS/Windows signing & notarization happen automatically when the relevant credentials are present in the environment (CSC_LINK / CSC_KEY_PASSWORD / APPLE_* for macOS, WIN_CSC_* for Windows).
How it works
The packaged app ships only the Electron shell. On first launch it installs the Hermes Agent runtime into HERMES_HOME (~/.hermes, or %LOCALAPPDATA%\hermes on Windows) — the same layout a CLI install uses, so the two are interchangeable. The renderer (React, in src/) talks to a hermes dashboard backend over the standard gateway APIs and reuses the embedded TUI rather than reimplementing chat. The install, backend-resolution, and self-update logic all live in electron/main.cjs.
Verification
Run before opening a PR (lint may surface pre-existing warnings but must exit cleanly):
npm run fix
npm run typecheck
npm run lint
npm run test:desktop:all
Troubleshooting
Boot logs land in HERMES_HOME/logs/desktop.log (includes backend output and recent Python tracebacks) — check it first if the app reports a boot failure.
macOS / Linux:
# Force a clean first-launch setup
rm "$HOME/.hermes/hermes-agent/.hermes-bootstrap-complete"
# Rebuild a broken Python venv
rm -rf "$HOME/.hermes/hermes-agent/venv"
# Reset a stuck macOS microphone prompt (macOS only)
tccutil reset Microphone com.nousresearch.hermes
Windows (PowerShell):
# Force a clean first-launch setup
Remove-Item "$env:LOCALAPPDATA\hermes\hermes-agent\.hermes-bootstrap-complete"
# Rebuild a broken Python venv
Remove-Item -Recurse -Force "$env:LOCALAPPDATA\hermes\hermes-agent\venv"
The default Hermes home on Windows is
%LOCALAPPDATA%\hermes. Set theHERMES_HOMEenv var if you've relocated it.
Community
- 💬 Discord
- 📖 Documentation
- 🐛 Issues
License
MIT — see LICENSE.
Built by Nous Research.