So many cool and advanced projects!
Even I use Zig as my main language for 4 months now, Im still learning.
As a goal I want to port my most successful open source project to Zig one day (from Rust). Since its a TUI for managing Biblatex databases, I just started to write a parsing lib for Biblatex files in Zig. Its still very early stage because Im not experienced with lexer/parser stuff, but a lot of fun. Will publish the code soon on codeberg.
Beside that Im contributing much to the S3 lib z3 since managing object storage systems is my daily buisness at work. And if there is a good Zig lib for building stuff, I even can use it there daily 