u/KairoBorei

I've been thinking about a possible "bridge" approach for Tuta (Personal Network), and I'd like some feedback on whether this makes sense or if I'm missing something obvious.

Important: This is just a concept and not secure as-is.

The idea is to run a modified version of the Tuta email client on a Raspberry Pi and use it as a local bridge server. The flow would look something like this:

• The Raspberry Pi runs a cloned/modified Tuta client
• It fetches emails and calendars from Tuta using their encryption layer (TutaCrypt)
• The bridge then exposes this data locally over IMAP (and maybe CalDAV) with OpenPGP
• Other devices on my LAN would connect to this bridge using Thunderbird as the email client

Tuta → Raspberry Pi bridge → local IMAP → Thunderbird clients on LAN

Questions/concerns:

• Is this even feasible given how Tuta's client and encryption model work?
• Would syncing and state management (read/unread, flags, calendar updates) become a nightmare?
• Are there existing projects or better approaches that solve a similar problem? (I'm aware that there's an official Tuta sidebar add-on available)

I just wanted to explore what might be possible—any thoughts, criticisms, or pointers would be greatly appreciated.