Bartłomiej Płotka

🚨 ALERTS{alertname="NewBlogPost", alertstate="firing"} 1 I wrote a about exciting and ambitious changes we are making in @cncf.bsky.social @prometheus.io project: prometheus.io/blog/2026/02... Diving into the potential future of the "native" model for the composite metric types in Prometheus. 💪

Make me care" is probably first rule to follow in tech talks too, tldr: story telling! gwern.net/blog/2026/ma...

Side projects, blog, podcasting is hard with 2 small kids, but I eventually managed to find time for a blog! (PS: I had to switch to 5am routine 🙈) Wrote some words about #lazygit OSS tool and what we can learn from its UX. Enjoy! 🤗 bwplotka.dev/2025/lazygit/

FYI, @cncf.bsky.social #KubeCon Europe (23-26th March) CFP closes in 3 days (12th October). What fun talks do you plan to propose? (: events.linuxfoundation.org/kubecon-clou... What'd you like to like to hear more about? Maybe you'd like to co-speak? Happy to mentor/co-speak with passionate ppl!

PromCon is one month away! 🤗 We wrote all your need to know on our blog: prometheus.io/blog/2025/09...

Fun bugs happen, let's see if you can spot them (without looking on comments)! (: Quiz#1: Why "make check" will never detect any formatting errors in the following snippet: gist.github.com/bwplotka/5c6...

Thinking about starting writing more again (blog posting, social media).. should I? I have some engineering/oss/mentoring topics queued for too long 🙈

Ever dreamed to be mentored by @prometheus.io community; get skilled in high performance monitoring databases, @golang and help #opensource on the way? Apply today on the LFX website 🤗 mentorship.lfx.linuxfoundation.org#projects_all

Reminder: The CfP for #PromCon (October 21+22 in Munich) is open! Please submit your @prometheus.io talks :) promcon.io/2025-munich/...

Things that brings the joy 🙃

"Every now and then, some people stop me in the street and say, ‘Oh, are you James Gosling? Thank you for giving me a career. I’ve been writing Java code for 20 years, and it’s been a great career.`" - JG thenewstack.io/java-at-30-t...

This April release, a new excited API, called Leo, was added to our Family! ♥️ We will be spending our time now to learn Leo requirements and outputs, so expect delays from me in OSS world in May... 🙈

New experimental garbage collector for Go programs! github.com/golang/go/is...

Common painful thing. But I think we found epic solution, available from next @prometheus.io version, who knows! Slides with the recorded demo is available here: docs.google.com/presentation...

What? Breaking metrics? 😱 @bwplotka.dev

For the first time, @cncf.io sandbox project @PersesDev will be at #KubeCon EU in London with a booth in the Project Pavilion at kiosk number 3B! Core maintainers @nexucis, Antoine Thébaud, @ntakashi.com, and Gabriel Bernal will be there for a chat!

I've just updated all of my Prometheus monitoring trainings at training.promlabs.com to Prometheus v3 and also updated most other component versions (Alertmanager, exporters, Prometheus Operator, SDKs, ...) to keep things fresh. Check out the trainings if you want to learn @prometheus.io :)

Go 1.24 now has Swiss Maps! Good thing I am an expert on those, all about it at FOSDEM!

I will be speaking (again) about Go's new Swiss Maps at the Golang Oxford Meetup this Thursday. www.eventbrite.co.uk/e/a-journey-...

Epic discussion around @golang.org error handling: github.com/golang/go/di... Adventurous ideas. Ofc there might something to improve, but the following image is still applicable: 🙈

We see more and more questions/responses on GitHub issues on OSS projects clearly generated with the help of GenAI - very generic, asking kind of unrelated questions. Quite hard to judge what part contributor exactly does not understand and how to help. Do you experience similar? Any tips? (:

Looks like @golang.org 1.24 is going to be pretty epic! Weak pointers, properly working finalizers alone might change the game! Then optimized maps, native fake clock, benchmarking reliability and ease of use, and tooling dependency management.. and more! antonz.org/go-1-24/

Now it’s official! I’m thrilled to announce I’ll be speaking at Observability Day alongside @Anthoine Thebaud about Dashboard as Code and Perses. See you all in London, folks!

📢 New year, new compliance! We're excited to share that Polar Signals Cloud is now SOC2 type 2 compliant! 🔐 www.polarsignals.com/blog/posts/2...

Orange sky is so magical. Imagine full time working from here...

I prefer yesterday.

I've finally gotten around to publishing my notes on how I use jj for contributing to Go/working with Gerrit. pratt.im/notes/jj-go-...

Coding AIs are great, but sometimes it feels good to use the old-school regex replacements you can trust without review 🙈

Programming in Makefile is only for the thrill seekers;every space matters!

Finally, an OpaqueAPI is officially coming to Go, with exciting lazy decoding and optimized memory layout! Now you know why the new API was necessary with that gogo migration friction 🙈 Let us know how it goes for you, it massively improved efficiency internally (lots of fields are never accessed)

I had a lot of fun talking about optimising and sustainability, with @halvarflake.bsky.social and Niki and @tomwilkie.bsky.social. bigtent.fm/s2/8

Quiz: Why am I paying so much for storing my photos in the cloud? Hint in the screenshot. 🫠

🥳 Go 1.23.4 and 1.22.10 are released! 📣 Announcement: groups.google.com/g/golang-ann... ⬇️ Download: go.dev/dl/#go1.23.4

Meme for this week: Benchmark in Production is *the best* 😄 Should we do one meme per week? Advent of Memes? Who's in?

Have you ever seen such a chunky (visually) profile frame???? Impressive.

I just accidently posted something on 1k Slack channel instead of DM...and it was fine. 🙃 This is due to one rule I stick around comms: Everything can be leaked, by accident or purpose. So be transparent, don't do politics or say things you would not be proud of if exposed later on, even in DMs!

Sometimes we work with so many requirements and edge cases that we tend to forget about trivial, imperfect, but good enough solutions. Ofc this is a note to myself 🙃

Ok, so the plan is to go to the gym everyday. In practice I will always skip something, so we get to 2-3 gym session/week. Works so far 🫠 #overestimatingByDesign

thanos_build_info{version="v0.37.0"} 1 v0.37.0 has been released, with a lot of exciting features and fixes! Thanks to the community and all of our amazing contributors! Enjoy! 🎉💜 github.com/thanos-io/th...

When one KubeCon ends, another KubeCon's CFP. starts...wait, also ends 💩

Hey 👋 The CFP for KubeCon London closes this weekend! 🚨 Don’t miss your chance to submit your proposal. events.linuxfoundation.org/kubecon-clou...

...and BTW, @prometheus.io OM 2.0 working group is forming up! groups.google.com/g/prometheus...