# egoist/bili

Bili makes it easier to bundle JavaScript libraries.

Repository: https://github.com/egoist/bili
Canonical: https://ross.abutalabs.com/products/bili
Homepage: https://bili.egoist.sh
Language: TypeScript
License: MIT
License Family: permissive
Topics: rollup, bundle, buble, babel, typescript, bundler, package
Last push: 2023-08-11T22:49:24+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": 3682, "days_push": 1118, "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 1031, forks 65 (observed 2026-08-28T04:03:17.986781+00:00)

## What it is
Bili is a zero-config bundler for JavaScript libraries, built on top of Rollup. It automatically handles transforms with Buble, Babel, or TypeScript and supports CSS preprocessors out of the box.

## Use cases
- bundle a javascript library for npm
- build a typescript library with zero config
- package a js library with rollup without writing config
- compile library code with babel or buble
- bundle css and sass in a js library build

## When to choose
- you want a fast, zero-config build for a small-to-medium JS/TS library
- you prefer Rollup output but dislike writing Rollup configs
- you need built-in CSS/Sass/Less support in a library build

## When to avoid
- you need a highly customized modern build pipeline (prefer Vite, tsup, or raw Rollup)
- you're bundling an application rather than a library
- you need actively maintained tooling with the latest ecosystem support

## Facets
- artifact type: cli-tool
- maturity: maintenance
- function: build-tool, developer-tools, cli
- domain: developer-tools, frontend, web-development
- platform: cli, cross-platform
- tags: rollup, bundler, javascript-libraries, typescript, zero-config, babel, nodejs

## Member repositories
- egoist/bili (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:17.986781+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 2026-08-30T07:07:26.417221+00:00, confidence not recorded.
  - readme: https://github.com/egoist/bili (fetched 2026-08-28T04:03:17.986781+00:00, sha aacadf9a07ec)
- Data as of 2026-08-30T08:39:29.467469+00:00.