Guide vs. Github difference

The guide and github use a different technology stack (in particular crowdsec vs. cloudflare zero trust as entrypoint). Why? What should one prefer for a small setup with up to 3 parallel users? I have experience with docker, docker-compose, openvpn and wireguard but not with that crowdsec/cloudflare stuff, so I don't know about the subtle differences that might come with the decision.

My priorities are:

• Security
• Maintainability
• User Experience (that's why I would prefer to not use a VPN as entrypoint)