@filipe The easiest way to install right now is using https://coopcloud.tech (you'll need to know the basics of the command line and setting up a server, like configuring DNS). Once you've got that set up, it's 3 commands to install a Bonfire instance.
But @mastohost is right, it's also about the side quests (setting up email and file storage services), ongoing maintenance/upgrades, and especially being able to figure out and fix things when something goes wrong...