# MichiganTypeScript/typescript-types-only-wasm-runtime

A WebAssembly runtime implemented in TypeScript types

Repository: https://github.com/MichiganTypeScript/typescript-types-only-wasm-runtime
Canonical: https://ross.abutalabs.com/products/typescript-types-only-wasm-runtime
Language: TypeScript
License Family: other
Last push: 2025-03-07T20:24:31+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 10, release rhythm 35, longevity 76
- inputs: {"age_days": 1066, "days_push": 544, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2404, forks 36 (observed 2026-08-28T04:06:44.027365+00:00)

## What it is
A WebAssembly runtime implemented entirely in TypeScript's type system, with no JavaScript runtime code, capable of compiling and executing WASM instructions at the type level. It was built as a demonstration project to prove that Doom can run in TypeScript types.

## Use cases
- run doom in typescript types
- execute wasm at compile time
- explore type-level programming in typescript
- demonstrate turing completeness of the type system
- learn advanced typescript type gymnastics
- implement arithmetic in typescript types

## When to choose
- you want a striking educational demo of type-level programming
- you're exploring the limits of TypeScript's type system
- you need a novelty showcase for a talk or article

## When to avoid
- you need a production WebAssembly runtime
- you want a maintained or extensible project
- performance matters at all
- you expect community support or PRs

## Facets
- artifact type: library
- maturity: abandoned
- function: interpreter, compiler, type-system, wasm
- domain: programming-languages, compilers, developer-tools
- platform: cross-platform
- tags: typescript-types, wasm-runtime, type-level-programming, doom, novelty, compile-time-computation, typescript, nodejs

## Member repositories
- MichiganTypeScript/typescript-types-only-wasm-runtime (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:06:44.027365+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T02:34:09.863657+00:00, confidence not recorded.
  - readme: https://github.com/MichiganTypeScript/typescript-types-only-wasm-runtime (fetched 2026-08-28T04:06:44.027365+00:00, sha 8616578963ce)
- Data as of 2026-08-30T08:39:29.467469+00:00.