Comment by Spunkie

I've not much to say on the thermal printer part of this but the extensions they did to markdown are great. They had me double taking for a few seconds thinking they might be real markdown because they make so much sense.

    [align=center]    Center-align the following text (also left, right)
    [qr=https://...]  Generate and print a QR code

Deprecating align in html was a mistake.