Are there any risks or disadvantages to building software from source, compared to installing a package? Can it mess with my system in any way?
I usually avoid it because I’ve found it to be a faff and often doesn’t work anyway but in a couple of cases it has been necessary.
Time. Your build environment can be potentially compromised. Takes more tools to build then install increase maintance, chances for failure to update, and increase attack surface area.
Removing software can be much harder if not installed by a package manager as well, which can make upgrades a PITA
That said yeah I do it from time to time. Build in one container, install in an other, and you mitigate some of that concern.