nix-config-umu-game SKILL.md skillB
nix-config-umu-game from ryan4yin/nix-config is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add ryan4yin/nix-config/nix-config-umu-game@git:20261010.0e70582Pins git:20261010.0e70582 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- B, 16 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- ryan4yin/nix-config
- Path
.agents/skills/nix-config-umu-game/SKILL.md- Versions recorded
- 3
- Latest version
- git:20261010.0e70582, committed Oct 10, 2026
- First version recorded
- Oct 8, 2026
- Size
- 13,418 bytes
- Repository stars
- 2,104
- License
- MIT
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Installing a Windows game launcher with umu The bundled `scripts/umu-install.nu` renders the files in `scripts/templates/`. It creates a prefix, runs the installer, and writes launchers. Use the Nix DW-Proton default unless research identifies a specific installed release; then select it with `PROTONPATH` and pin that path in the game's `conf`. **Every per-game detail lives under `~/Games/`**, never in this repo. ## Bundled files - `scripts/umu-install.nu`: installer and template renderer - `scripts/templates/*.tpl`: non-executable templates; placeholders use `@NAME@` - `scripts/tests/test_install.py`: offline regression tests ## Layout - `~/Games/global.conf`: optional, sourced by every game before its own `conf` - `~/Games/<name>/prefix`: the Wine prefix (`WINEPREFIX`) - `~/Games/<name>/conf`: optional per-game overrides (`ENABLE_MANGOHUD=0`, ...) - `~/Games/<name>/prelaunch`: optional executable, run before every launch - `~/Games/<name>/run`: generated launcher - `~/Games/<name>/exec`: generated helper: `exec <exe-or-tool> [args...]` - `~/Games/<name>/<name>.desktop`: generated desktop entry …
Read the whole file at its exact version.
How to install
mdr add ryan4yin/nix-config/nix-config-umu-game@sha256:1edec4a71aafb59fThe line at the top of this page pins the label git:20261010.0e70582, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_cpzi7ayr46ppkf3m)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Oct 8, 2026 and Oct 10, 2026, about one every day.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261010.0e70582 latest | 2026-10-10 | 0e70582 | 13,418 B | B | view · diff |
| git:20261010.a2cfa55 | 2026-10-10 | a2cfa55 | 14,062 B | B | view · diff |
| git:20261008.9e2633f | 2026-10-08 | 9e2633f | 14,143 B | B | view |
Audit of the latest version
- fail: Frontmatter declares a description
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Size between 200 bytes and 200 KB (13418 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Starting a new one? Use a template for SKILL.md on mdpantry, which passes every one of these checks and says what to change in it.
Source
ryan4yin/nix-config · 2,104 stars · license MIT · pushed 2026-10-21 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_cpzi7ayr46ppkf3m GET https://markdownregistry.com/api/v1/resolve?ref=ryan4yin/nix-config/nix-config-umu-game GET https://markdownregistry.com/api/v1/blob/1edec4a71aafb59ffb5245d6e2cc7902dc478b06941d546dc0bc3b046f7d1a5c
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.