https://docs.letta.com/guides/server/source/
Installing Letta from source | Letta Docs
Install Letta server from source for development and customization.
installing lettasource docs
https://docs.letta.com/guides/ade/desktop/
Installing Letta Desktop | Letta Docs
Install Letta Desktop application on macOS, Windows, and Linux.
letta desktop docsinstalling