Reassign Bixby button on rooted S10

I never use Bixby on my rooted Galaxy S10e, so I would like to repurpose the Bixby button, for instance as camera shutter or to open an app of my choice. **Question:** How to do that? *Note: I tried following https://www.theverge.com/2019/3/1/18246255/how-to-re-program-bixby-button-samsung-galaxy-s8-s9-s10-8-note-9 but at the first step, which is to open Bixby, I am told:* > *Bixby Voice isn't available in your country.* *From Settings > Advanced features > Bixby key:* > *The Bixby key setting isn't available yet. Sign in to Bixby to start using the Bixby key.*