+1 for using Tauri over Electron. I've been using it for my MCP marketplace and management app[1], and it's been excellent. Having previously used only Electron, I was surprised by how much smaller the binaries are. Performance also feels noticeably faster.
The only challenge was my lack of familiarity with Rust. Even if you're starting off with a "JS first app", Tauri often requires dropping into Rust for anything even slightly native, such as file system access (eg. managing config files for Claude, Witsy, or code editors), handling client lifecycle actions like opening, closing, and restarting, or installing local MCP servers.