I'm usually looking for $X but (one or more or all of): open source, has dark mode, not electron, uses rust, is markdown first, git friendly for my data. I cou

I'm usually looking for $X but (one or more or all of): open source, has dark mode, not electron, uses rust, is markdown first, git friendly for my data. I could be specifically looking for, or flexible on details like: desktop GUI app (native? not electron? tauri ok?), a webserver with web UI (I might be picky about database, docker, backend language, front-end language), or CLI tool.