Small web apps I built for my own days. Most of them do one thing for one person, which is the point.

• Still

  A meditation timer with four bells, a countdown or open-ended mode, and a tap that turns the screen black. Finished sessions can go to Apple Health through a Shortcut.

• Cello notes

  Learning to read notes for Cello Time Joggers. Flash cards, a play-along that listens through the microphone, and a tuner.

• Geochron 3D

  A live globe with day and night, clouds, the ISS, bright satellites, earthquakes and aurora. The flat 2D version adds time zones, the analemma and your own satellites from a TLE file.

• Commute planner

  A Swiss station clock that tells me which bus to take right now and how long until it leaves.

• Morning routine

  Pick how much slack you want, how you travel and how long breakfast takes, and it tells you when to set the alarm.

• Banenzwemmen Amerena

  When the next lane-swimming session is at the Amerena pool in Amersfoort, and whether you get the whole pool or a few 50-metre lanes.

• Income split

  Splits a household bill in proportion to two incomes and shows the sum step by step.

• The Daily

  A one-page morning newspaper, made to read on an e-ink screen.

• Treintijden

  NS departure times for my TRMNL e-ink display, and a phone notification that shows whether my trains are on time.