Luckily, we went off Eagle a while ago. We used it mainly because we couldn't justify 4 Altium Licenses for our department. Building system prototypes and measurement equipment just isn't profitable enough inside a multi-billion USD super tanker of a company it seems.
We try to go open source to prevent stuff like that as much as possible. I would say we are around 80% there so far (excluding obviously manufacturer-specific stuff like STM Cube IDE). KiCad, Gitea, drawio, Python(and thank heavens for pyvisa), Octave, OpenProject. Next up is probably Eclipse Capella.
The only stuff we currently can't get rid of are Simulink and SolidWorks.
You might want to check out wxMaxima for symbolic math.
FreeCAD and Solvespace are both aiming at mcad, but neither are yet. FreeCAD could get better if they spend a year focusing on usability and consistency improvements.
Are you using simulink for code generation or something else? I used to work at a company that made automotive controllers and a simulink "platform" for developing controls on them, and I occasionally flirt with starting a similar company that uses a cheaper/open source toolchain, but always come up empty handed. There are some academic libraries and papers around the Xcos ecosystem, but nothing near production level that I could find.
We try to go open source to prevent stuff like that as much as possible. I would say we are around 80% there so far (excluding obviously manufacturer-specific stuff like STM Cube IDE). KiCad, Gitea, drawio, Python(and thank heavens for pyvisa), Octave, OpenProject. Next up is probably Eclipse Capella. The only stuff we currently can't get rid of are Simulink and SolidWorks.
Well, maybe in the future.