Could you explain why the added complexity to the code and API is justified, over just the solution in #39 .

using environment isn't user friendly in my opinion
plus i don't think the average user knows where VSCode keeps its configurations

Another problem is we don't want users doing sshcode --insiders all the time. I agree that environment variables by themselves aren't friendly to the average user, but I also explain how to configure for VS Code Insiders on the README. I think that's good enough education on how to do this.

I can agree with that, i do believe that you could use 1 variable instead of 2