Another example, with version 0.15.18:
hexedit.png The byte that must be changed to 00 is the one highlighted in orange.

This is with the Factorissimo 2 mod, causing it to be near "Factory floor 2" instead of "nauvis."

To find it I executed "/c game.player.print 'hello me!'" just before saving ...

These are the steps to fix a save that has achievements disabled because of console commands, make sure you understand them before attempting them:

Get a Hex editor if you don't have one yet (I recommend HxD , also has portable versions)
Make a backup of the save file (.zip) somewhere else ...

The game isn't really client-server based - the "server" still runs the entire game simulation exactly like all the clients do. The only difference is the server doesn't start up a user interface or create a player.
Regardless it can be written in a more portable language. You can make some ...

What about maybe an open-source server? If I knew how the protocol worked I could make one using Python/C(++) easily, I used to work on the Terraria TShock team for networking.

I was wondering if this was possible considering I've read it's done mostly in C(++). I have a Raspberry Pi 3 and Asus Tinkerboard that I would like to run a factorio server on.