One way of greatly improving ROCm installation process would be to use the Open Build Service which allows to use the single spec file to produce packages for many supported GNU/Linux distributions and versions of them. I opened a feature request about this.

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How about improving ROCm itself? Is it still a big problem like before?

I’ve commented this before and I’ll do it again. DO NOT try to install ROCm/HIP, it’s a nightmare. AMD provides preconfigured docker containers with it already setup. Download one of them and do whatever you need to do on that.