Thanks for the contribution!

This is a breaking change:

bot.command('start', ctx => {
  // The PR breaks this:
  const text = ctx.msg.text
})

I am happy to merge this for a 2.0 release. However, there are a lot of things to do before a 2.0 release makes sense, so this PR will have to remain open for months.

That being said, this only takes so much time because I am the only one actively working on the core package. Lots of people review my work and try out new features, but only very few actively work on features. For example, if someone else could take responsibility for #136, I could put more time into the core again. Naturally, I also appreciate a lot if anyone wants to help out with #109!

If the composer code was to change, you do not need to update this PR. I will ping you when this becomes relevant again, i.e. when work on 2.0 begins.