head to head · open source
Buzz vs sill
Buzz has 35,979 GitHub stars, 4,761 forks, 3,556 open issues and last shipped today. sill has 979 stars, 51 forks, 53 open issues and last shipped yesterday. Buzz leads on adoption by 3,575% (35,979 vs 979 stars). Buzz is written in Rust under Apache-2.0; sill is written in Swift under Apache-2.0. Buzz has attracted 13% as many forks as stars, sill 5%. 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 | sill | |
|---|---|---|
| GitHub stars | ★ 36K | ★ 979 |
| License | Apache-2.0 | Apache-2.0 |
| Written in | Rust | Swift |
| Last push | 2026-10-15 | 2026-10-14 |
| Forks | ⑂ 4.8K | ⑂ 51 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Buzz if
- You weight community size — 36K 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 sill if
- You want the sill feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Swift
- You evaluated both and sill 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 sill
Sill is a free, open source app that streams any window, or the whole desktop, from an Apple silicon Mac to an iPhone or iPad, where it is driven by touch, trackpad, keyboard or Apple Pencil, with no account and no server in between.
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Frequently asked questions
Is Buzz or sill more popular?
Buzz has 35,979 GitHub stars and sill has 979. Buzz has the larger community by that measure.
Are Buzz and sill free?
Both are open source. Buzz is licensed under Apache-2.0 and sill under Apache-2.0. Neither carries a licence fee.
What is the difference between Buzz and sill?
Buzz is written in Rust and sill in Swift. 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 sill?
Choose Buzz if you want the larger community (35,979 stars) or its Apache-2.0 licence terms. Choose sill if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.