Given some thought, this would probably be fine, but I'd rather not do it because

1. https://drasl.example.com/authlib-injector is the canonical, correct URL for the authlib-injector endpoint, and we should be conservative in what we send and liberal in what we accept.
2. In light of Allow for custom frontends #122, what if the custom front end copies these setup instructions but forgets the header on /?
3. There's not much benefit to the user, it's a little quicker to type, but these are already links that can easily be copied and pasted, or dragged and dropped onto Fjord Launcher (which authlib-injector specifies, strangely)

Given some thought, this would probably be fine, but I'd rather not do it because

1. https://drasl.example.com/authlib-injector is the canonical, correct URL for the authlib-injector endpoint, and we should [be conservative in what we send and liberal in what we accept](https://en.wikipedia.org/wiki/Robustness_principle).

2. In light of [Allow for custom frontends #122](https://github.com/unmojang/drasl/issues/122), what if the custom front end copies these setup instructions but forgets the header on `/`?

3. There's not much benefit to the user, it's a little quicker to type, but these are already links that can easily be copied and pasted, or dragged and dropped onto Fjord Launcher (which authlib-injector [specifies](https://github-com.translate.goog/yushijinhun/authlib-injector/wiki/%E5%90%AF%E5%8A%A8%E5%99%A8%E6%8A%80%E6%9C%AF%E8%A7%84%E8%8C%83?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-US#%E9%80%9A%E8%BF%87%E6%8B%96%E6%8B%BD%E8%AE%BE%E7%BD%AE), strangely)

Perhaps drasl could allow for manually overwriting the AuthlibInjectorURL by checking for its definition in the config?

Well, the AuthlibInjectorURL per se (authlib-injector API root) should not be customizable, this is more related to what URL is suggested to users. I think the best way would be to allow users to more easily customize everything that's on the home page/configuration page (should those be separated at some point). Maybe via placing Go template files somewhere under StateDirectory?