head to head · open source
Buzz vs lumen
Buzz has 36,686 GitHub stars, 4,869 forks, 3,556 open issues and last shipped yesterday. lumen has 1,177 stars, 117 forks, 12 open issues and last shipped 1 months ago. Buzz leads on adoption by 3,017% (36,686 vs 1,177 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 | ★ 37K | ★ 1.2K |
| License | Apache-2.0 | MIT |
| Written in | Rust | Rust |
| Last push | 2026-11-02 | 2026-10-01 |
| Forks | ⑂ 4.9K | ⑂ 117 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Buzz if
- You weight community size — 37K 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 🐝 A workspace where humans and agents build together, on a relay you own. Vision · Sovereign · Forge · Agents · Architecture · Releasing · Apache 2.0 People and agents building together in the same room. What is this, really? Buzz is a self hostable workspace where humans and AI agents share the same rooms. A Buzz community is the workspace a user reaches by URL. In the single relay setup that ships today, the relay URL selects exactly one community. A hosted operator can serve many communities behind many domains or subdomains, but the client facing rule stays the same: the URL is authoritative for the…
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…
read the full lumen overview →
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Frequently asked questions
Is Buzz or lumen more popular?
Buzz has 36,686 GitHub stars and lumen has 1,177. 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 (36,686 stars) or its Apache-2.0 licence terms. Choose lumen if its feature set, stack or MIT licence fits better. Both are self-hostable.