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3 months agoWhat generation is it? Don’t try any of this without confirming you have the right model and generation:
I’ve never been able to tolerate Amazon’s bastardized take on Android. If you also hate it, You can make it a semi functional Android tablet by rooting, debloating and installing the Google Play services.
Here’s how to root, use the “hardware mod” method:
https://xdaforums.com/t/unlock-root-twrp-unbrick-fire-hd-8-2018-karnak-amonet-3.3963496/
http://billm10.x10host.com/Fireroot.html
If you get really lucky, you might be able to flash LineageOS.
LineageOS for gen6-7:
And here’s a tool to help with the question you asked (although I don’t have any first hand experience, I prefer Google books):
Fedora is a Desktop OS, not a server OS. Proxmox is ok, but overkill for your needs.
Ubuntu server is what you’re looking for. 12 years of security updates, officially supported livepatch (so no reboots after even kernel updates), and official support.
Hire a professional. This is not a safe thing to do yourself. Any server needs to be professionally secured.