Peergos is an encrypted file system with sharing and sync whose servers cannot read contents, names, sizes, folders or contacts; it can be self-hosted and is a non-profit.

It frames what every later unit is protecting.

Peergos is an encrypted file system, with sharing and sync built in. The server stores your files. It cannot read them.

Encrypting the contents is the easy half. Peergos also hides the names, the sizes, the folders, and who you share with.

You can run the whole thing yourself, for nothing. And still share with everyone else.

It is open source, and a non profit. No investors. Paid for by the people who use it.

This series takes it apart one idea at a time. How files are stored. How keys work. How sharing works. And what a server can and cannot see.

Check yourself. Name three things besides contents that Peergos hides from its server.