There's a much appreciated bash completion script at https://github.com/alire-project/alire/blob/master/scripts/alr-completion.bash. It would be really nice if the script was bundled with the alr executable in such a way that a command would spit out the contents. I think it would be convenient, especially if features are added later, for keeping the bash completion script in sync with my alire installation.

As for how to embed the bash script into the executable, C has the #embed preprocessor since C23. Also, the Ada Web Server project has a tool called awsres specifically for generating Ada code to embed resources from file contents.