head to head · open source
nx vs penguin-harness
nx has 29,359 GitHub stars, 3,003 forks, 490 open issues and last shipped 2 days ago. penguin-harness has 2,305 stars, 245 forks, 77 open issues and last shipped yesterday. nx leads on adoption by 1,174% (29,359 vs 2,305 stars). nx is written in TypeScript under MIT; penguin-harness is written in TypeScript under Apache-2.0. nx has attracted 10% as many forks as stars, penguin-harness 11%. penguin-harness was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (build-tool), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| nx | penguin-harness | |
|---|---|---|
| GitHub stars | ★ 29K | ★ 2.3K |
| License | MIT | Apache-2.0 |
| Written in | TypeScript | TypeScript |
| Last push | 2026-09-19 | 2026-09-20 |
| Forks | ⑂ 3.0K | ⑂ 245 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick nx if
- You weight community size — 29K stars and counting
- You want the MIT license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick penguin-harness if
- You want the penguin-harness feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches TypeScript
- You evaluated both and penguin-harness fits your workflow better
About nx
Nx is an MIT licensed monorepo platform for TypeScript and polyglot codebases that caches unchanged work, runs only affected tasks, and ships an integrated CI solution aimed at both developers and autonomous AI agents.
About penguin-harness
PenguinHarness is an open source, local first, multi agent auto development platform that runs on a developer's own computer or server and automates the full lifecycle of AI agent applications — creation, evaluation, optimization, and deployment — under the Apache 2.0 licence.
read the full penguin-harness overview →
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Frequently asked questions
Is nx or penguin-harness more popular?
nx has 29,359 GitHub stars and penguin-harness has 2,305. nx has the larger community by that measure.
Are nx and penguin-harness free?
Both are open source. nx is licensed under MIT and penguin-harness under Apache-2.0. Neither carries a licence fee.
What is the difference between nx and penguin-harness?
nx is written in TypeScript and penguin-harness in TypeScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, nx or penguin-harness?
Choose nx if you want the larger community (29,359 stars) or its MIT licence terms. Choose penguin-harness if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.