# OSEM vs SpacetimeDB

> Two self-hosted projects, compared on the numbers selfhost.directory tracks live: score, popularity, release cadence and setup effort.

| | OSEM | SpacetimeDB |
|---|---|---|
| Score | 47/100 | 75/100 ✓ |
| Rank in category | #8 of 11 in Event Management | #7 of 38 in Databases |
| GitHub stars | 929 | 25 426 ✓ |
| Stars, last 30 days | +0 | +104 ✓ |
| Stable releases, 12 months | 0 | 7 ✓ |
| Latest release | — | v2.13.0 · 19 Oct 2026 |
| Setup | Advanced | Moderate ✓ |
| Official Docker image | No | Yes ✓ |
| License | MIT | Other |
| Main language | Ruby | Rust |

## Which one should you pick?

SpacetimeDB scores 75/100 against 47/100 for OSEM, so it is the safer default.

SpacetimeDB ships more often: 7 stable releases in the past year, against 0 for OSEM.

If you want the quickest setup, SpacetimeDB is easier to run; OSEM needs more configuration.

SpacetimeDB is growing faster right now (+104 stars in 30 days).

## Details

- [OSEM](https://selfhost.directory/project/osem) (markdown: https://selfhost.directory/project/osem.md)
- [SpacetimeDB](https://selfhost.directory/project/spacetimedb) (markdown: https://selfhost.directory/project/spacetimedb.md)

---
Source: https://selfhost.directory/compare/osem-vs-spacetimedb