Oh that's weird... python3-lark is the correct one and it appears to be correctly installed. What happens when you type import lark in FreeCAD's python console?

Yes, but note that just anything can be used to create an opening in a wall. You can create a sketch, extrude it (with Part Extrude or for ex. Arch Structure ), then use that object as a subtraction (use the Arch Remove tool). So the functionality actually exists already. In IFC terms, also, an open...

If it's the same as in Belgium, you cannot pretend to a tax reduction just by donating to anyone. It must be a "charity" org, and the charity status is something only given to a very defined list of org types like hospitals, philantropic NGOs, etc, which we are not. And to pretend to tax r...

oh you are on linux... Then it should just be a matter of apt-get install python3-lark (or any other way to install packages on your distro, just look for "lark" or "python-lark" or "python3-lark" or something like that)

Isso não deveria acontecer... Qual sistema operacional está usando?

Thanks for the feedback guys! paullee , some notes: 1) having several sketches as a base: You can also compound those sketches prior to using them. I think that might be nicer because it will give a cleaner interface. But also, it should be possible to define custom components. So you could make sev...

Indeed ifcopenshell at some point started needing the lark python module. However AFAIK the package that you download from the ifcopenshell website should contain all these dependencies... Where did you get ifcopenshell from?

What I gather mostly abut UI/UX design is that it's mostly about small details and setting sensible defaults. It should not change the workflow of existing users in any way. That should be a perfectly achievable goal. Experienced users either don't use the defaults, or are able to customize the defa...

Gorgeous! I'd really like a nice ascii-art like that instead of our current one
Only I think it should be smaller in height, no? something like 7-8 lines max...

Did you search using duckduckgo's !fc shebang? I actually don't even know how that shebang existed and how to change it...