Exponential Backoff in NestJS
NestJS has great tooling for rate limiting requests but somehow does not implement exponential backoff. Let's fix that.
KlaasNotFound
I make. I learn. I write.
Latest posts
What’s up With Small-Scale Compressed Air Energy Storage?
Compressed air energy storage has amazing economics at large scale. Why don't we see more modular, small-scale commercialization of this technology?
Sodium-Ion Batteries Won’t Free Us From Chinese Market Dominance
Western policy makers and investors have recurring hopes that non-lithium battery chemistries might free us from Chinese dominance in the global battery market. I don't think that's likely to happen.
Fixing the Pump Pressure of the Rancilio Silvia Espresso Machine
It's the solenoid valve, stupid!
Terraform Industries’ Business Case Doesn’t Add Up
Terraform Industries says it will produce synthetic natural gas at competitive prices within the next decade. I doubt that is possible.
How Much Renewable Energy Do We Need?
How much wind, solar, hydro etc. would each country need to cover all of its primary energy use with renewables?
Relaunching This Blog
After a multi-year hiatus, I have decided to blog again. Rejoice!
How to Create a Smooth Ken Burns Effect Sequence in iMovie
Ken Burns is a great way to animate still images. Unfortunately, iMovie only allows you to pan and zoom from one point to another. I'll show how to smoothly chain several transitions.
Calculating the K‑Factor from App Invites
The k-factor is an important metric for measuring viral growth. I'll show you how to calculate it when users invite other users to an app.
Creating CMYK Prepress PDFs with Inkscape and Scribus
Inkscape cannot export prepress PDFs. Scribus can, though. I'll show you how.
Location on Android: Stop Mocking Me!
Scroll to the bottom and grab a Java class that solves all issues of setting up location services and detecting mock locations across all relevant Android versions.