Here is a thread about the reason (US law):

That’s why I would never relocate to US regardless of how much well paid jobs they have. The US law is against open source principles. It’s like taking some part of freedom from you and of course that’s for your own good. The US wants to “take all” from the world and hurt anyone they want even without a true reason (see attack on Irac). That’s the american “freedom” in practice.

The sanctions are not just affecting “some people”, but they also affect many our communities in return. I think we as a community should do the same to US. I wonder if the open source licenses can be updated to the new version that prevents using the software by any company or law authority that fights with open source principles.

Hex.pm website sanctions on Iranian programmers

I understand it would affect also other countries that are making sanctions, but once the companies would realise that they can lose a lot they would quickly try to reach law authorities as simply people really don’t like losing money.

The worst thing is that Iran did not do anything wrong. The US broke the agreement in one way and don’t want to negotiate fairly. Everywhere I hear that the US wants to attack Iran or attack it before they attack “us”. Persians are proud people with honour and Iran in past helped Polish refugees. That is why I always say that there is not a Pole who, knowing this, would ever support the sanctions or any attack on Iran.

Why would they have a big deal on contributor who’s in a sanctioned region? smh america

I recently migrated one of my personal projects to Codeberg, and it was quite easy to do, so I think I’ll do the same with the rest of my stuff some weekend soon.
Migrating GitHub Actions to another CI can be a challenge, but luckily I wasn’t too invested in platform-specific things, so shouldn’t be a big deal