Install process not smooth

[mrx23dot]

I tried the install process suggested on the website onto Debian10.

wget http://os.ghalkes.nl/sources.list.d/install_repo.sh ; sudo sh ./install_repo.sh ; sudo apt-get install tilde But it only installs outdated one: Tilde version 1.0.0 Not sure how to update this to latest.

It doesn't install repo addresses so this fails after it: sudo apt install tilde-keyring tilde (even after apt update)

Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package tilde-keyring

I would expect a smoother install:

• adding custom repo (preferably not)
• apt install tilde-keyring tilde (preferably only 'tilde')

So apt install would simply update it to the latest version in the future. Without having to look up the .sh file again.