Here is a dump of my cheat sheets that I tend to use to save some of my time.
04-2019 LVM for Proxmox on OVH/SoYouStart/Kimsufi
04-2019 Hiding Proxmox 5 web interface behind reverse proxy with SSL
03-2019 Configuring Proxmox with one IPv4 on Kimsufi
03-2019 Tinc Centralized Interconnection
03-2019 Adding new nodes to Tinc mesh network
02-2019 NGINX Reverse Proxy with caching and SSL
02-2019 Configuring Tinc, an encrypted P2P VPN