Niice, here's our signet docs if it helps too below

You can also get the Blink app into signet mode by:
hamburger (top right) > scroll to bottom > tap version number 3 times > scroll down to 'Update Environment' > select Staging 

https://dev.blink.sv/self-host/deployment/signet

 

 Wow even more useful! You are signet champions and pioneers!