head to head · open source
Buzz vs lumen
Buzz has 33,547 GitHub stars, 4,395 forks, 3,556 open issues and last shipped today. lumen has 1,152 stars, 119 forks, 12 open issues and last shipped 17 days ago. Buzz leads on adoption by 2,812% (33,547 vs 1,152 stars). Buzz is written in Rust under Apache-2.0; lumen is written in Rust under MIT. Buzz has attracted 13% as many forks as stars, lumen 10%. Buzz was the more recently maintained of the two, and both are self-hostable with no licence fee.
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
| Buzz | lumen | |
|---|---|---|
| GitHub stars | ★ 34K | ★ 1.2K |
| License | Apache-2.0 | MIT |
| Written in | Rust | Rust |
| Last push | 2026-09-18 | 2026-09-01 |
| Forks | ⑂ 4.4K | ⑂ 119 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Buzz if
- You weight community size — 34K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Rust
- You value the larger contributor base for long-term maintenance
pick lumen if
- You want the lumen feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Rust
- You evaluated both and lumen fits your workflow better
About Buzz
Buzz is a self hostable workspace platform where humans and AI agents collaborate in shared rooms, using a single Nostr based event log as the underlying data model. It unifies team chat, project management, and agent automation into one coherent interface, replacing fragmented tools with a unified protocol for events like messages, code patches, CI results, workflow steps, and approvals. Built in Rust and licensed under Apache 2.0, it runs as a single relay deployment per community or as a multi tenant hosted service sharing infrastructure while preserving strict community boundaries.
About lumen
Lumen A private Lumina server that can be used with IDA Pro 7.2+. lumen.abda.nl runs this server. You can read about the protocol research here. Features Stores function signatures so you (and your team) can quickly identify functions that you found in the past using IDA's built in Lumina features. Backed by PostgreSQL Experimental HTTP API that allows querying the database for comments by file or function hash. Getting Started Docker Method (Recommended) In this method precompiled docker images will be downloaded, All you need is docker compose.yml. 1. Install docker engine and docker compose . 2. If using a cus…
read the full lumen overview →
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Frequently asked questions
Is Buzz or lumen more popular?
Buzz has 33,547 GitHub stars and lumen has 1,152. Buzz has the larger community by that measure.
Are Buzz and lumen free?
Both are open source. Buzz is licensed under Apache-2.0 and lumen under MIT. Neither carries a licence fee.
What is the difference between Buzz and lumen?
Buzz is written in Rust and lumen in Rust. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Buzz or lumen?
Choose Buzz if you want the larger community (33,547 stars) or its Apache-2.0 licence terms. Choose lumen if its feature set, stack or MIT licence fits better. Both are self-hostable.