Mithraeum builds quiet software for people who write code by hand. We make small, durable instruments — text editors, agents, and the local models that run them. Bring your own keys. Bring your own weights. Nothing phones home that you didn't tell it to.
Your text, your keys, your weights. No telemetry. No silent network. The cursor is a private place.
One file. One C source. No JavaScript runtime to swallow your editor. The tool fits in a head.
Any model. Any provider. Any prompt. The agent is a peer at your terminal, not a stranger in the cloud.
A single-file modal text editor written in C. Vi-bound, language-aware, and built to last a decade. Hako is the workspace — a quiet box around the cursor where everything else hangs off.
— Modal editing · 40+ syntax modes · Configurable from a single header file · Zero runtime dependencies.
A standalone terminal agent in a single C file. Model-agnostic, skill-driven, and quiet — the binary is one file, your keys live on disk, the conversation never leaves your shell unless you tell it to. Inside hako it answers to :rei; outside, it's hakoc.
— Skills are markdown-defined behaviors. Drop a folder in skills/ and CLAW invokes it. Persistent session, resumable history, trust-gated tools. Community PRs welcome.
Local models, trained for the cursor. Small enough to run on your machine; tuned for the kinds of edits a programmer actually asks for. The repo is private until the first weights ship.
— No cloud round-trip. No prompt logging. Architecture and training data documented when released.
The installer fetches the latest signed release for your OS and arch, verifies the sha256 sidecar, and drops hakoc into ~/.local/bin (or /usr/local/bin if writable). No package manager, no daemon, no telemetry.
curl -fsSL https://mithraeums.github.io/install.sh | sh
Anthropic, OpenAI, Gemini, Groq, Cerebras, DeepSeek, Mistral, Together, Fireworks, OpenRouter, xAI, Ollama, plus a custom hatch. Set a key, set a model, that's the wire.
Gemini, Groq, Cerebras, OpenRouter :free, Ollama local — claw runs against any of them with a single /login. No card. No quota dance.
Persistent sessions, JSONL history, resumable threads, trust-gated tools. The agent keeps context the way you keep notes — on disk, where you can read it.
hakoc --update pulls the latest release, verifies the hash, and atomically replaces the binary. No reinstall, no rebuild.
Each skill is a folder in mithraeums/skills containing a SKILL.md and any helpers. CLAW loads them on startup. Open a PR to add yours — the rite is the README.
Extracts text and structure from a PDF on disk. Handed to CLAW so the agent can answer questions about a document without re-uploading it.
Open a PR against mithraeums/skills. Folder name becomes the invocation.
Block caret refinements, two new syntax modes, sigil-based status line, opt-in mouse support. Configuration moved to a single header.
Termios raw line editor with cursor keys, history (↑/↓), Home/End, kill-word. --update self-updater verifies sha256 before atomic-replacing the binary. Universal2 macOS, Linux arm64, FreeBSD x86_64 added to the release matrix.
First skill landed. Defines the SKILL.md schema CLAW will load against. PRs open for community contributions.
First local weights aimed for the v0.1 hako cycle. Repo opens with the release.