Good day ladies and gentlemen 
After a long and unfair battle with GTK and C in December, Iām finally on track. I thought it will be easier because I have some experience with shell scripting combined with Zenity widgets, butā¦ itās a different pair of shoes. Maybe it would be a smooth start if Iāll start from GTK3 with Glade help, but I started from GTK4, however it wasnāt waste of time because I learned something overall. For example, how to use documentation 
No worries, I donāt switch to GTK completely and start to rewriting everything to GTK3 leaving tools in unfinished state.
After last year of work on project, Iāve got into conclusion that on present state, working on āStudioā spin doesnāt have much sense when Iām working on program which tweaks system back and forth and the goal is to donāt restrict to any desktop environments. So the idea of Manjaro spin is dropped, and Iāll focus only on tools. Btw, some time ago @djamayaofficial created this topic, and I like the idea of having GUI for switching pipewire settings on the fly, so itās added to my TODO. Which means after I rearrange GitLab repository, Iāll migrate from this topic to RecBox ToolKit (or something like that) in Software category which will be more appropriate.
Except programming stuff, Iāve spent some time with DrumGizmo, and oh boy, itās amazing. If youāre planing recording drums in the future, this is very close to mixing a real drum kit. Iām planing to write a guide for it soon, and one for creating keyboards for ultra beginners. Iāve played a bit on piano in the past, so it will be more like creating background for guitars than the masterpiece you can hear for example in Nightwish.
Looks like itās everything for now. I link everything when I move all tools to its own repositories and create new topic.
Till the next time. Regards