physicalfeed — programme calendar feeds

  GET /programmes
      Programmes and the frequencies each one supports.

  GET /new?programme=strength-foundations&freq=3&days=mon,wed,fri
      Mints a subscription URL.

      programme  strength-foundations
      freq       sessions per week; selects the split
      days       mon,wed,fri — must match freq
      start      YYYY-MM-DD, omit for today
      mode       allday (default) | timed
      hour       0-23         timed mode
      duration   minutes      timed mode, default 60
      busy       1 to block the slot as busy   timed mode
      alarm      minutes before, 0 to disable  timed mode (Apple only)
      rest       1 to add all-day Rest day events
      emoji      0 to strip emoji from titles
      tz         IANA zone, e.g. America/Toronto
      unit       lb (default) | kg — display only
      location   gym name, shown on the event
      onEnd      repeat (default) | hold | stop

  GET /feed/<token>.ics