OSS
OPEN SOURCE

Seafile
File sync and share on a box you own, with versioned libraries and clients that move only the blocks that changed.
haiwen/seafile · ★ 15,094 · last commit 3d ago · AGPL-3.0-only · needs 2048 MB RAM · runs on ARM (Pi-friendly)

01
REPLACES
One tool, 1 subscription
The same server can serve several escape hatches — that's how a $5 VPS beats a $50 SaaS bill.