I'm part of the team behind Zellij, and today we're very excited and proud to announce we've released a beta version!
This version should be relatively stable for every day use (we all use it ourselves :)) and includes a nice basic feature-set that we're iterating over and adding to.
If you'd like to read more, here's the announcement: https://zellij.dev/news/beta/
And here's a direct link to the repository: https://github.com/zellij-org/zellij
This release also includes the beginnings of our WebAssembly plugin system. You can read more about how to develop plugins in our documentation: https://zellij.dev/documentation/plugins.html
I hope you like the tool!