The personal blog of Joost Zöllner. Software Architect, Web Developer, Nerd.https://joost.io/https://joost.io/blog/xteink-x4/https://joost.io/blog/xteink-x4/A tiny e-ink reader from AliExpress turned out to be one of the most practical gadgets I bought in a long time.Fri, 27 Mar 2026 23:00:00 GMThttps://joost.io/blog/teddycloud-toniebox/https://joost.io/blog/teddycloud-toniebox/I installed TeddyCloud on my kid's Toniebox and ended up with a flexible setup for custom audio and NFC tags.Mon, 16 Mar 2026 23:00:00 GMThttps://joost.io/blog/funk-uhren-dcf77/https://joost.io/blog/funk-uhren-dcf77/I take a closer look at how radio-controlled clocks synchronize with the DCF77 time signal in Europe.Thu, 06 Feb 2025 23:00:00 GMThttps://joost.io/blog/bullet-journal-start/https://joost.io/blog/bullet-journal-start/I start a Bullet Journal in 2025 as an absolute beginner and share my experiences and insights.Tue, 21 Jan 2025 23:00:00 GMT