Install Linux 5.3 from sid
We install it from experimental for 4.0~rc1, but we shouldn’t ship a kernel from experimental in 4.0.
The relevant commit is 031cf21c.
Feature Branch: bugfix/17124-17161-linux-5.3-from-sid+force-all-tests
To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information