to play with cookies

this serves a nginx server on port 8443

Caution

you want to change your /etc/hosts (on *nix)

# /etc/hosts
127.0.0.1 website.com a.website.com b.website.com sub.a.website.com

next, install just for your system. take a look at https://just.systems if unsure how

get podman too while you're at it. you don't have openssl? what insane operating system are you on? get openssl too.

$ just genssl
$ just container
$ # now you mess around with conf.d/server.conf
$ # you look at https://a.website.com https://b.website.com https://sub.a.website.com
$ # you can tell you need to tell your browser you want a taste of danger
$ just reload
$ # ^ do that when you make changes to server.conf