I discovered a method to launch "Circle to Search" on GrapheneOS with a single action. I would prefer a fully open-source alternative to this utility, but for now there doesn't seem to be any viable alternatives.
Steps to Enable:
- Install the Google App
-I installed from the sand-boxed play store
-Only network access permission is required
- Set Google as the Default Digital Assistant (In the system settings)
- Install MiCTS
-This is an open source app available on GitHub
-It is intended for rooted devices but in this case works to launch the CTS activity
-This app requires no permisions
- Configure a Shortcut with Key Mapper to the MiCTS app
-I used key mapper available from F-Droid
-I assign a simultaneous press of the Volume Up and Volume Down buttons to MiCTS
Now if there is text on the screen to copy, I can quickly extract it. Hopefully these steps help someone looking for a way to enable this feature. I have confirmed that it works on both my phone and tablet.