Very successful week with another paper published: Steffen Zacharias et al.: Achieving Harmonized and Integrated Long-Term Environmental Observation of Essential Ecosystem Variables - The eLTER Framework of Standard Observations.

https://onlinelibrary.wiley.com/doi/abs/10.1029/2025EF006743

Combining a suggested set of essential ecosystem variable with measurement protocols and associated costs.

#ecosystems #newPublication #xp

#silentSunday #xp

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A larger mountain lake surrounded by mostly snow-less mountains with scattered forests and krummholz. The landscape is mirrored in the lake below a blue sky with some clouds.

Struggling with brittle tests that slow you down? Join my 𝐖𝐞𝐥𝐥-𝐁𝐚𝐥𝐚𝐧𝐜𝐞𝐝 𝐓𝐞𝐬𝐭-𝐃𝐫𝐢𝐯𝐞𝐧 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭workshop on 𝐌𝐚𝐲 21-22, 2026 in Antwerp! Learn how to write reliable, maintainable tests that help you think about software design and prevent defects. Early -bird tickets are available until 𝐀𝐩𝐫𝐢𝐥 19.

For more information: https://principal-it.eu/training/well-balanced-test-driven-development.html

#tdd #unittests #softwaredesign #softwarecrafting #xp

How many species of vascular plants can you spot?

#springflowers #bloomscrolling
#xp

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Forest ground flora with a white flower of Helleborus niger, pink Daphne mezereum, blue Hepatica nobilis, as well as non-flowering Oxalis acetosella, Anemone nemorosa, Fragaria vesca, Carex spec.

Today we stayed in the valley - amd had a warm and sunny spring day.

#xp

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A stand of Leucojum vernum (spring snowflake/Märzenbecher).

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A yellow/green pasture in the foreground, spruce forest in the middle and a massive snow covered mountain in the back. The picture is framed to the right by a spruce tree; a group pf spruce trees is to the left. The sky is blue withe several contrails and a few clouds.

Light and shadow are so close together. Yesterday I had a wonderful day of ski touring in the finest powder and good weather. Today, I struggled uphill in fog and wind and then downhill through the worst kind of slush.

#skitouring #skimountaineering
#xp

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A sun-lit ridge and snow cornice covered in powder snow in the foreground, with a snow-covered, rocky mountain in the background. A blue sky with clouds.

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Dramatic snow-covered, rocky limestone Mountains in the fog. A shallow slope with snow in the foreground.

This two-day, hands-on workshop blends theory with practice in a real-world codebase. Yotdd #unittests #softwaredesign #softwarecrafting #xp to master the art of writing loosely coupled and highly maintainable automated developer tests.

𝐑𝐞𝐠𝐢𝐬𝐭𝐞𝐫 𝐛𝐲 𝐀𝐩𝐫𝐢𝐥 19 𝐭𝐨 𝐭𝐚𝐤𝐞 𝐚𝐝𝐯𝐚𝐧𝐭𝐚𝐠𝐞 𝐨𝐟 𝐭𝐡𝐞 𝐞𝐚𝐫𝐥𝐲-𝐛𝐢𝐫𝐝 𝐝𝐢𝐬𝐜𝐨𝐮𝐧𝐭! Spots are limited, so visit my website (https://principal-it.eu/training/well-balanced-test-driven-development.html) to learn more and secure your spot.

#tdd #unittests #softwaredesign #softwarecrafting

Last week, I presented my talk "𝐞𝐗𝐭𝐫𝐞𝐦𝐞 𝐏𝐫𝐨𝐠𝐫𝐚𝐦𝐦𝐢𝐧𝐠 – 𝐓𝐡𝐞 𝐊𝐧𝐨𝐰𝐥𝐞𝐝𝐠𝐞 𝐖𝐞 𝐋𝐨𝐬𝐭” at devConf 2026. I had a lot of fun sharing one of my favourite topics with such an engaged and receptive audience.

You can find the slides for my talk at:
https://kdrive.infomaniak.com/app/share/110604/901a0767-ca77-46aa-8e2d-d57aa4d5b2c3

#XP #ExtremeProgramming #Agile

Tomorrow, I’ll be presenting "𝐞𝐗𝐭𝐫𝐞𝐦𝐞 𝐏𝐫𝐨𝐠𝐫𝐚𝐦𝐦𝐢𝐧𝐠 – 𝐓𝐡𝐞 𝐊𝐧𝐨𝐰𝐥𝐞𝐝𝐠𝐞 𝐖𝐞 𝐋𝐨𝐬𝐭” at 𝐝𝐞𝐯𝐂𝐨𝐧𝐟 2026. This talk is a deep dive into the origins and core practices of XP, and why these ideas are still very relevant today. Let’s reconnect with the principles that shaped modern technical practices.

🔗 More info & registration: https://devconf.nl/

Looking forward to seeing you there!
#XP #ExtremeProgramming #Agile