Can't run php flarum

My Flarum instance works great but for some reason I can never run the commands suggested by many plug-in authors:

php flarum migrate
php flarum cache:clear
php flarum info

I always get:
Could not open the input file: flarum

If I try navigating to my /vendor folder, the command runs without the error but produces no output (that I can tell).

Any PHP folks know why I might have issues? I installed flarum in my root directory instead of /flarum so maybe that has something to do with it.

JRay run that command in the root directory of Flarum. The root directory is the folder that contains the vendor, storage, and assets folder.

Kyrne when I try that I get:

Could not open the input file: flarum

Maybe I've got some PHP permissions messed up.

You're not in the installation directory of flarum.