bit-team / backintime

A comfortable and well-configurable graphical Frontend for incremental backups, with a command-line version also available. Modified files are transferred, while unchanged files are linked to the new folder using rsync's hard link feature, saving storage space. Restoring is straightforward via file manager, command line or Back In Time itself.

rdiff-backup / rdiff-backup

Reverse differential backup tool, over a network or locally.

nahrek / polyledger

Resumable Polymarket indexer: CLOB market metadata plus on-chain trades from Polygon, in one DuckDB file you can query with SQL

jstriblet / open-whispersync

Self-hosted Whispersync: sync your exact spot between Kobo ebooks (Calibre-Web) and Audiobookshelf audiobooks using forced alignment