craftyjon

I would recommend you both try recent KiCad in that case, because what you're asking for is how it has worked since KiCad 9 (and 10 will also warn you about overlaps visually)

KiCad 8 and newer have built-in importers for Altium schematics, boards, and libraries. See https://docs.kicad.org/9.0/en/kicad/kicad.html#importing_a_p... for more info.

KiCad EDA - https://kicad.org

KiCad is a popular open-source EDA tool used by engineers and designers across the globe. We're always open to contributions from experienced C++ developers, especially those who are also familiar with the world of electrical engineering / PCB design. Check out our developer landing page[1] to find the developers email list and contribution guides. We accept merge requests on GitLab[2] and try to keep a number of lower-scope issues tagged starter [3] for new developers to take on.

We're currently in our annual feature freeze as we focus on stabilizing features added in the past year and squashing bugs ahead of our planned 9.0 release at the end of January. Any help testing the nightly builds and surfacing bugs to fix is appreciated as well as actual bug-fixing!

[1] https://dev-docs.kicad.org/en/getting-started/index.html

[2] https://gitlab.com/kicad

[3] https://gitlab.com/kicad/code/kicad/-/issues/?label_name[]=s...

The 6.0 release hasn't been made officially yet (the source code tagging is just the first step in that process). There will be an announcement and changelog once it happens.