you can define `__using__` any way you want, and phoenix's default isn't technically any different. it's just a convention that you can choose to use or not, pe

you can define `__using__` any way you want, and phoenix's default isn't technically any different. it's just a convention that you can choose to use or not, personally I try to rip out a lot of what the `web.ex` file does because I like being more explicit.