Tools we would bet on

Tracks every change to text, from code to notes. Repositories are plain directories you can copy anywhere.

A full SQL database in one file, with a format the project has committed to supporting for decades.

The dependable choice when many clients need the same data. Decades of careful, backward-compatible releases.

Encrypted, deduplicated backups to local disks or remote storage, with built-in verification.

Space-efficient encrypted backups, popular for servers. Mature and well documented.

Keeps folders in sync between your own devices, directly, without a cloud account in the middle.

Copies and mirrors files efficiently, sending only what changed. A staple of backup scripts.

Converts between dozens of document formats, from Markdown to HTML, PDF and word-processor files.

Builds fast static websites from Markdown. A single binary with no runtime dependencies.

Serves static files and proxies applications. Small, fast and running a large share of the web.

A web server that obtains and renews HTTPS certificates automatically, with a very short configuration.

An offline password manager storing everything in one encrypted file that you control.

A minimalist, self-hostable RSS reader. Fast, quiet and focused on reading.

Keeps terminal sessions running on a server after you disconnect, and splits one window into many.

A text editor available on nearly every server. Learn the basics once and use them for decades.

A full office suite built around the open OpenDocument formats, which any compatible program can read.