Thanks for the review. Added to 'to Read’s list.

For why this is happening to me, I’ve narrowed this down to the following: snoring (I start snoring as soon as my eyes close), dreams (I have “imaginative” dreams, a lot of nightmares) and the last reason being lack of sleep to which I think I’ve actually heard the explosion but it was a dream.

https://www.turnkeylinux.org/ check them out for a lot of your business, self-hosted needs. Odoo, like others have said, is on there. I once used moodle for new employee onboarding and training.