# rsms/estrella

Lightweight and versatile build tool based on the esbuild compiler

Repository: https://github.com/rsms/estrella
Canonical: https://ross.abutalabs.com/products/estrella
Language: TypeScript
License: ISC
License Family: permissive
Topics: javascript, compiler, esbuild, typescript
Last push: 2024-06-16T13:48:32+00:00

## Health v2 (maintenance only)
Score: 23/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 2295, "days_push": 808, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1101, forks 36 (observed 2026-08-28T04:03:35.528946+00:00)

## What it is
Estrella is a lightweight, scriptable build tool for TypeScript and JavaScript built on top of the esbuild compiler. It wraps esbuild in a single-file CLI library with watch mode, parallel builds, and optional TypeScript diagnostics while preserving esbuild's fast startup.

## Use cases
- bundle a typescript project with esbuild
- watch source files and rebuild automatically on change
- run typescript type checking in parallel with bundling
- write custom build scripts without config files
- build multiple projects in parallel
- auto-run a program after rebuild during development

## When to choose
- you want esbuild's speed with a convenient scriptable API
- you prefer build scripts over config files
- you need watch mode and parallel tsc diagnostics on top of esbuild

## When to avoid
- you need a full-featured bundler with a large plugin ecosystem
- your project uses a bundler-specific config format like webpack or vite
- you need features beyond what esbuild supports

## Facets
- artifact type: cli-tool
- maturity: maintenance
- function: build-tool, compiler, cli, developer-tools
- domain: developer-tools, web-development, frontend
- platform: cli, cross-platform
- tags: esbuild, typescript, watch-mode, bundler, build-automation, javascript, nodejs

## Member repositories
- rsms/estrella (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:35.528946+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 2026-08-30T06:45:43.938993+00:00, confidence not recorded.
  - readme: https://github.com/rsms/estrella (fetched 2026-08-28T04:03:35.528946+00:00, sha 2390397db795)
  - registry_npm: https://registry.npmjs.org/estrella (fetched 2026-08-29T12:48:41.405190+00:00, sha 0960270b330b)
- Data as of 2026-08-30T08:39:29.467469+00:00.