Julius Volz
@juliusv.com
🚀 Co-founder prometheus.io
🏢 Founder promlabs.com and promcon.io
👨🏼🏫 Teaching monitoring with Prometheus: training.promlabs.com
🏢 Founder promlabs.com and promcon.io
👨🏼🏫 Teaching monitoring with Prometheus: training.promlabs.com
Anyone in Berlin interested in an old rad1obadge from Chaos Communication Camp 2015? (otherwise 🗑️)
November 18, 2025 at 4:48 PM
Anyone in Berlin interested in an old rad1obadge from Chaos Communication Camp 2015? (otherwise 🗑️)
Ever had trouble understanding / debugging your target relabeling rules in @prometheus.io? I just added a visualizer to the Prometheus server that allows you to see how each rule is applied to a discovered target and what the outcome is:
github.com/prometheus/p...
github.com/prometheus/p...
November 2, 2025 at 12:55 PM
Ever had trouble understanding / debugging your target relabeling rules in @prometheus.io? I just added a visualizer to the Prometheus server that allows you to see how each rule is applied to a discovered target and what the outcome is:
github.com/prometheus/p...
github.com/prometheus/p...
Those auto-translated video titles that YouTube forces on you don't always work out 🤣 (original title was, "Mache diese 5 Fehler nicht beim Schrauben")
September 22, 2025 at 10:17 PM
Those auto-translated video titles that YouTube forces on you don't always work out 🤣 (original title was, "Mache diese 5 Fehler nicht beim Schrauben")
Sometimes it's important to get out and away from everything. Greetings from Madeira 🛵 🏔️🏝️
September 14, 2025 at 7:24 PM
Sometimes it's important to get out and away from everything. Greetings from Madeira 🛵 🏔️🏝️
Had to try this and yes! 🤣
September 6, 2025 at 1:33 PM
Had to try this and yes! 🤣
This is hopefully a joke, right? Article claims the opposite.
August 21, 2025 at 1:05 PM
This is hopefully a joke, right? Article claims the opposite.
This picture gives me dinosaur vibes as well. How is this in the middle of the US? #zionnationalpark
August 4, 2025 at 10:31 AM
This picture gives me dinosaur vibes as well. How is this in the middle of the US? #zionnationalpark
Do we know more about the funding for this? Since the White House article claims it's going to be paid by Trump and donors: www.whitehouse.gov/briefings-st...
August 1, 2025 at 4:47 PM
Do we know more about the funding for this? Since the White House article claims it's going to be paid by Trump and donors: www.whitehouse.gov/briefings-st...
Ah interesting. I just left TIN empty. I have a vague memory of going down that rabbit hole once and also looking at EINs, and then coming to the conclusion that I can just leave that field empty.
This part of the form instructions (www.irs.gov/pub/irs-pdf/...) seems to suggest so too:
This part of the form instructions (www.irs.gov/pub/irs-pdf/...) seems to suggest so too:
August 1, 2025 at 11:42 AM
Ah interesting. I just left TIN empty. I have a vague memory of going down that rabbit hole once and also looking at EINs, and then coming to the conclusion that I can just leave that field empty.
This part of the form instructions (www.irs.gov/pub/irs-pdf/...) seems to suggest so too:
This part of the form instructions (www.irs.gov/pub/irs-pdf/...) seems to suggest so too:
The district office of Pankow (a Berlin district) published restaurant sanitary inspection results at pankow.lebensmittel-kontrollergebnisse.de
I vibe-coded a website to scrape and show all results on a map (I didn't touch any line of code myself!):
pankow-restaurant-inspection-map.netlify.app
I vibe-coded a website to scrape and show all results on a map (I didn't touch any line of code myself!):
pankow-restaurant-inspection-map.netlify.app
July 29, 2025 at 4:21 PM
The district office of Pankow (a Berlin district) published restaurant sanitary inspection results at pankow.lebensmittel-kontrollergebnisse.de
I vibe-coded a website to scrape and show all results on a map (I didn't touch any line of code myself!):
pankow-restaurant-inspection-map.netlify.app
I vibe-coded a website to scrape and show all results on a map (I didn't touch any line of code myself!):
pankow-restaurant-inspection-map.netlify.app
Teasing a spicy 🔥 blog post that I'm planning on publishing tomorrow
July 16, 2025 at 5:16 PM
Teasing a spicy 🔥 blog post that I'm planning on publishing tomorrow
My personal highlight at @cloudnativezurich.ch was the closing talk by former longest-serving NASA Head of Science @drthomasz.bsky.social today. Asked him about the proposed NASA budget cuts, and he said he's gonna talk to Republicans in Washington the next days/weeks to try and change their minds!
June 12, 2025 at 5:52 PM
My personal highlight at @cloudnativezurich.ch was the closing talk by former longest-serving NASA Head of Science @drthomasz.bsky.social today. Asked him about the proposed NASA budget cuts, and he said he's gonna talk to Republicans in Washington the next days/weeks to try and change their minds!
"Quadrants of @prometheus.io metadata" by Björn Rabenstein at the Berlin Prometheus meetup.
May 27, 2025 at 5:28 PM
"Quadrants of @prometheus.io metadata" by Björn Rabenstein at the Berlin Prometheus meetup.
Need to display something in dark mode that wasn't made for it, like a dark SVG diagram or server-rendered syntax highlighting that would become unreadable on a dark background?
Easy:
filter: invert(1) hue-rotate(180deg);
Easy:
filter: invert(1) hue-rotate(180deg);
May 21, 2025 at 12:18 AM
Need to display something in dark mode that wasn't made for it, like a dark SVG diagram or server-rendered syntax highlighting that would become unreadable on a dark background?
Easy:
filter: invert(1) hue-rotate(180deg);
Easy:
filter: invert(1) hue-rotate(180deg);
Working on a new @prometheus.io homepage (very WIP screenshots) based on @nextjs.org. I built the old homepage >10 years ago and back then I really liked it, but now it looks so old-school (and is outdated under the hood) that a new site was really overdue. Also, we'll have syntax highlighting ;)
May 9, 2025 at 8:20 AM
Working on a new @prometheus.io homepage (very WIP screenshots) based on @nextjs.org. I built the old homepage >10 years ago and back then I really liked it, but now it looks so old-school (and is outdated under the hood) that a new site was really overdue. Also, we'll have syntax highlighting ;)
TIL `console.table(<array-of-objects>)` for showing tabular output in the browser's dev console 🤩
March 30, 2025 at 9:35 AM
TIL `console.table(<array-of-objects>)` for showing tabular output in the browser's dev console 🤩
Holy shit that's crazy, 10 organic eggs cost around $4.30 (€3.99) here in Germany.
March 14, 2025 at 2:41 PM
Holy shit that's crazy, 10 organic eggs cost around $4.30 (€3.99) here in Germany.
Apparently I should blink more when recording YouTube videos (I think it got better in later ones) 🤣
March 6, 2025 at 10:14 PM
Apparently I should blink more when recording YouTube videos (I think it got better in later ones) 🤣
REWE labeling fail 😅 Glad I spotted this before buying this for €7.14 instead of €1.79.
February 20, 2025 at 8:00 PM
REWE labeling fail 😅 Glad I spotted this before buying this for €7.14 instead of €1.79.
Yes, that was me, back then still over on Twitter:
February 14, 2025 at 11:48 AM
Yes, that was me, back then still over on Twitter:
Leider steht die naive Positionierung zu Russland/Ukraine und gegen die NATO noch im Parteiprogramm. Ich meine, wtf (von www.die-linke.de/partei/progr...):
February 13, 2025 at 4:49 PM
Leider steht die naive Positionierung zu Russland/Ukraine und gegen die NATO noch im Parteiprogramm. Ich meine, wtf (von www.die-linke.de/partei/progr...):
Encouraging to see tens of thousands of people get out in Berlin today to protest for liberal democracy and against the far-right takeover and destruction of the free world.
January 25, 2025 at 5:47 PM
Encouraging to see tens of thousands of people get out in Berlin today to protest for liberal democracy and against the far-right takeover and destruction of the free world.
The highest election result Hitler ever got was 43.9%, is there a source for 80%?
From en.m.wikipedia.org/wiki/March_1...
From en.m.wikipedia.org/wiki/March_1...
January 22, 2025 at 9:46 PM
The highest election result Hitler ever got was 43.9%, is there a source for 80%?
From en.m.wikipedia.org/wiki/March_1...
From en.m.wikipedia.org/wiki/March_1...
