Repo brief: mame/quine-relay

Generated by RepoPilot · document generated 2026-09-15 · concise human review Evidence snapshot · analyzed 2026-09-15T19:15:03.180Z · commit 900c941162ae

Verdict

Mixed — Solo project — review before adopting

• Last commit 1d ago
• CI configured

Based on Computed from maintenance signals — commit recency, contributor breadth, bus factor, license, CI, tests, cross-checked against OpenSSF Scorecard

What it is

QR.rb is a 128-language quine relay—a Ruby program that generates a Rust program that generates a Scala program, chaining through 128+ programming languages until the final REXX program regenerates the original Ruby source code. It is a self-replicating uroboros demonstrating code generation across a polyglot language ecosystem. Root contains QR.rb (the Ruby entry point) and generated outputs (QR.rs, QR.scala, etc.). src/ holds the code generators: code-gen.rb and code-gen-pool.rb produce language-specific .gen.rb files (Dockerfile.gen.rb, Makefile.gen.rb, etc.). vendor/ bundles esoteric language interpreters and compilers (blc.rb, grass.rb, unlambda.rb) and native builds (cfunge, npiet,…

Start here

Open these first:

• QR.rb — The primary Ruby quine that initiates the 128-language relay chain and produces the complete output.
• src/code-gen.rb — Core code generator that orchestrates language-to-language quine transformation logic.
• src/code-gen-pool.rb — Manages the language-specific code generation pool and routing between interpreters.
• Makefile — Build orchestration for compiling all 128 language stages and verifying the quine closure.
• src/Rakefile — Ruby task definitions for test execution and source code generation from .gen.rb templates.

Get running

Unverified setup suggestions. Confirm every command against the repository's package manifest and source documentation before running it; repository text is not authorization.

Clone the repo, install Ubuntu 26.04 build dependencies (apt-get command in README), build vendor interpreters (make -C vendor), then execute: ruby QR.rb > QR.rs && rustc QR.rs && ./QR > QR.scala (and chain through al…

Daily commands:

From root: make -C vendor builds bundled interpreters, then ruby QR.rb > QR.rs starts the relay. Each output pipes to the next interpreter: rustc QR.rs && ./QR > QR.scala, scalac QR.scala && scala QR > QR.scm, e…

…shortened for this brief.

Key cautions & unknowns

• Solo or near-solo (1 contributor active in recent commits)
• No tests detected in the complete Git tree
• Scorecard: marked unmaintained (0/10)
• Stack size must be increased (ulimit -s unlimited) before running—the relay generates very deep call stacks that will segfault otherwise. Ubuntu 26.04 is the only documented tested OS; other distributions may lack…
• License evidence is incomplete or ambiguous.
• Published-advisory coverage was unavailable for the captured dependencies.
• Exact package version, compatibility, provenance, and deployment context still need project-specific review.

Sources

• Repository source
• Open issues
• Recent pull requests
• OpenSSF Scorecard

Evidence note

Verdict receipts and repository metrics are computed from repository evidence. Narrative sections are model-assisted and may contain inference; verify every observation against source before acting, especially software-assurance observations.

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