I agree. The keyboard is fantastic, it is the best smallest keyboard I've ever used. Debian 13 works out of the box and there are no screen rotation issues.
I have a Chuwi Minibook X and the keyboard is amazing. Its the best smallest keyboard available anywhere, I can type on it just as easily as my other larger laptops. I think there must have been something wrong with the reviewer's hardware, mine works great.
You need to use https://github.com/smurfix/buildscad which can convert OpenSCAD to Build123d, then you can export a STEP file. It has a few limitations, but for simple OpenSCAD files it can generate an equivalent representation in OpenCASCADE.
The people who build proper home cockpits inside real aircraft, especially interfacing with old aircraft hardware, are always very impressive. This takes a lot of time, dedication, and reverse engineering.
But it is also easy to get started at home. Using some 42 inch televisions and old Android tablets, you can replicate a lot of the immersion very easily and have fun, see if you like it. Check out my open source projects and free apps for X-Plane and more details on building your own immersive flight simulator experience: https://www.waynepiekarski.net/projects/xplane.htm
Although be aware, these projects tend to turn more into an adventure building than actually flying much :)