Library Genesis MCP server (jmrplens/libgen-mcp v2.0.1): federated book/paper search, download and read across LibGen and open-access sources. No account, API key or cookie required, unlike annas-mcp.
The flake's pinned nixpkgs only ships Go 1.26 and upstream needs Go 1.27, so package the prebuilt static release binaries (same approach as yarr).
MCP server for reading, rendering, and searching PDF files using PyMuPDF.
Exposes get_page_text, get_page_image (render page as PNG), search_text.
Python, so it spawns reliably under the mcp-gateway stdio backend.
Building yarr from source (Rust) takes ~5+ min and times out the
config-nixos CI runner (3h limit) when combined with the full
perlis+wilkes+relay flake check. Use the pre-built x86_64-linux binary
from GitHub releases instead — fast fetch, no Rust toolchain needed.
Removes the rust-nixpkgs flake input (no longer needed).
yarr needs rustc 1.97.1 but the main nixpkgs input (pinned by flake.lock)
has rustc 1.95.0. Bumping the main input breaks aioimaplib (email server
dep), so add a separate rust-nixpkgs input pinned to a newer rev.
yarr is excluded from the overlay (which uses the main nixpkgs) — build
it via 'nix build .#yarr' on the flake directly.
Replaces the Node.js-based mcp-arr-server and jellyfin-mcp backends
in the gateway with a single Rust binary that covers both *arr and
Jellyfin. Rust binaries work through the gateway's stdio spawn
(where Node.js ones fail with 401).
Packages MCP servers currently used by Hermes that were not yet in this
repo. Real hashes computed via nix build on wilkes; nix flake check passes.
- annas-mcp: Go, buildGoModule (re-added, previously dropped as broken)
- bitwarden-mcp: npm @bitwarden/mcp-server
- mcp-email-server: Python, buildPythonApplication
- namecheap-mcp: npm namecheap-api-mcp
- navidrome-mcp: npm navidrome-mcp
- ovhcloud-mcp: npm from GitHub, tsc build step
- slskd-mcp: Python, fastmcp wrapper
- sabnzbd-mcp: original upstream (jmagar/sabnzbd-mcp) was deleted from
GitHub (404). Repoint to jasonpaulso/sabnzbd-mcp fork, which preserves
the same file layout and the /sabnzbd/api string postPatch rewrites.
- annas-mcp: remove package that was never completed (lib.fakeHash
placeholders) and is not referenced anywhere in config-nixos. It was
breaking 'nix flake check'.
Go binary from michaeldvinci/audiobookshelf-mcp (v0.0.5).
Covers libraries, audiobooks, podcasts, authors, collections,
playlists, and users. Uses buildGoModule with fakeHash placeholders
to be filled on first nix build.
Python MCP server (fastmcp + httpx) that exposes the Pinchflat REST API
as MCP tools. Covers sources, media items, media profiles, tasks, and
settings endpoints.
Tested against live Pinchflat instance — 28 sources, search, app info
all working via stdio transport.
- Add flake structure with overlay and packages exports
- Add manim-mcp-server as first packaged MCP server
- Add README.org with usage instructions and package templates
- Add packages/default.nix as package aggregator
- Add overlays/default.nix for nixpkgs integration
hermes-agent
luis
hermes-agent
MCP Packages