645c1406-68a2-4cad-8951-aefe89714aed

you would need to be using uvicorn, please check out this docs page -
https://docs.railway.app/guides/fixing-common-errors

yes that is what i'm using

please read the docs page I linked

alright

just tested with the port variable and 0.0.0.0 and it worked but when using ipv6 '::' protocol the Application Error: This application failed to respond is raised had to switch to hypercorn to make both private and public working

yep uvicorn does not support dual stack binding

Thank you

no problem!