If you like to build with the famous game pieces LEGO, surely this CAD program called Leocad you will like. It is a multiplatform design program to create your figures virtually before building them and thus know in advance how they will be and to make an automatic list of the pieces you need to be able to create them in reality. Without a doubt, quite practical software for those who use LEGO, both for the little ones and for the adults who still enjoy it.
As I said, it is multiplatform, and of course you can install it also on your Linux distribution. If you want to download LeoCAD you can go to the download area of the official website of the project. You can find links for the code on Github, documentation to know how to use it, although it is quite intuitive and simple, and of course the packages for the different operating systems that you can download completely free of charge. In the case of the package for Linux, it is a universal AppImage package, so once you download the 55MB that it weighs, you will only have to run it and that's it. The truth is that this SCHEDULE It is not for general use and may seem absurd to those who do not like or interest LEGO, but I discovered it by chance today and the truth is that I found it interesting to share it with you. Also, if you are new you will not need too much to get up to speed due to its ease of use. And if this seems little to you, it is open source, so anyone can analyze its code or contribute to the development.
On the other hand, LeoCAD is fully compatible with the standard ldraw and the tools related to it, which means that it uses this library of parts that already has some 10.000 different parts and continues to grow and update ... It has support for LDR and MPD, so it can read and write to these types of files and you can share your own designs over the Internet.
It also allows TENTE.