I'm curious, how did you conclude that AccessKit is a huge dependency? The binary size does vary by platform, with the Linux backend being especially large due to its use of a pure-Rust implementation of D-Bus. But the Windows x64 DLL is 268 KB, and the macOS x86-64 dylib is 437 KB stripped. The impact of the static library on your binary size will probably be about the same, or maybe a little less because most applications don't require all of the little setter and (especially) getter functions. I'm not happy with the size on Linux, but I think it's acceptable on Windows and macOS, given that accessibility is, in many contexts, a must-have.

Sorry, I based this on your comment "If you can accept a Rust dependency". I haven't actually looked into it yet, but I'll check it out, thanks for sharing.

However, I'd still prefer to go with my own solution, if possible, for tighter integration.