Just discovered this package and it looks pretty cool, as someone who mainly does spectroscopy. In trying out the examples, I noticed that double hash marks ## are used frequently. In VS Code with the Julia extension, these are used to define separate regions within a file. So pressing alt+return will execute only the code between two sets of ##. I don't see a reason to separate the code in the examples in this way, for example in the Peak Fitting section. Just a single # will do.