Linux version fails to start, /tmp with noexec, fix

[Elegant Goblin In Africa]

I couldn't find this in the forums, so here goes in case it helps.
Stellaris was failing to start, the process was showing the Paradox Laucher being started but failing with
Error: Cannot open ~/.paradoxlauncher/launcher-v2.2020.3/resources/app.asar/dist/main/microworks.node: Error: /tmp/.org.chromium.Chromium.LccK9k: failed to map segment from shared object

It seems it tries to store data in /tmp, but expects /tmp to allow executables to be ran, a security risk. In my case, /tmp is a ramdisk mounted with noexec.
You can try to remount /tmp without noexec, or create a new temporary directory somewhere and start stellaris with the command: TMPDIR=/path/to/whatever/tmpdir %command%

[int_ua]

Please post your suggestion to Paradox forums https://forum.paradoxplaza.com/forum/threads/stellaris-launcher-for-stellaris-2-4-doesnt-launch-when-tmp-is-mounted-noexec.1257922/

And you can add
rm $TMPDIR/.org.chromium.Chromium.*

because of course Stellaris can't even cleanup after itself >:(