Time Parser Project

This is a simple personal time tracker built with clojure, aws lambda and dynamodb, inspired by Laura Vanderkam’s “168 Hours” book

February 11, 2018 · (updated February 26, 2023) · 3 min · 461 words · Michal Piekarczyk

Some plant time lapse

Some time lapse photography.

January 7, 2018 · (updated March 18, 2023) · 1 min · 4 words · Michal Piekarczyk

Spoke too soon

Darn, I was riding for at least one to two days thinking, why am I riding much slower? Last night I finally noticed that wow my rear wheel is really wobbly and rubbing up against the breaks quite a bit lately. This morning I finally started setting up to true the wheel. I marked the spoke which looked like adjusting it would have the highest impact. And wow I didnt notice it completely sheared off....

December 1, 2017 · (updated February 26, 2023) · 1 min · 114 words · Michal Piekarczyk

Citibike Learn Project

Can your Bike Share Destination be Predicted

December 18, 2016 · (updated February 26, 2023) · 14 min · 2893 words · Michal Piekarczyk

cardboard chair

One time, when at Katapult, we moved to a new office, but we were moving from a wework and so we didn’t have any chairs, so I joined to help buy new chairs from Staples. We rolled a hand cart full of boxed up chairs down the a bike lane, to the office and we assembled all the new chairs. But then I remember we had tons of cardboard from all the boxes, so I ended up stashing a bunch of cardboard for myself, and bolted together a cardboard chair....

October 26, 2014 · (updated July 27, 2025) · 1 min · 130 words · Michal Piekarczyk