I extracted the month-builder from /calendar into a module called marama (see meaning here)

Next step is to add some options for how to display the month :

• days stacked top-to-bottom (current /calendar view) vs left-to-right (classic and doodle style month view)
• show day number in each tile
• add an "on-click" handler and have range-selection and and date-picker type logic be distinct
• figure out how to allow different sizes of month calendar
  • centering things when you have odd number of pixels widths at small scale looks terrible.
  • maybe specify a 'radius' thing more generally