Hey @anthropic.com, hear me out: Multi-player claude code sessions. Sharing the same claude code session with my team.
Posts by Frederic Branczyk
TypeScript users can now enjoy Polar Signals Cloud to the fullest as well!
Does it? For me it seems that only cursor does it, but I just re-authed and will see in a bit. Also of course possible we messed up!
Cursor seems to work flawlessly for us.
Shout out to Cursor for (to my knowledge) being the only MCP OAuth client that implements token refreshes! It makes a huge difference for users not having to re-auth all the time.
/buddy off
Fun idea, but in practice, annoying and distracting.
We caught up with @bwplotka.dev at KubeCon EU. He's excited about semantic conventions across OTel and Prometheus finally becoming practical, and AI tools changing how open source is built. #KubeCon #OpenTelemetry #Prometheus
youtube.com/shorts/QF3Yk...
Periodic reminder that O(1) is not equal O(1). Your constant matters.
A historic step for profiling within the OpenTelemetry project!
We caught up with Felix earlier this week at KubeCon EU, and TODAY he's presenting on the OpenTelemetry profiling signal reaching alpha, together with Florian.
๐ 15:15, Hall 8, Room F
Profiling as a first-class signal in OTel is huge. Don't miss it!
@metalmatze.de and I are at KubeCon! Hit us up if you wanna chat observability and continuous profiling!
I'll be at KubeCon next week. I don't have many slots left, but if you wanna hang out or chat about profiling and all things observability! DM me, and I'm happy to find time!
At #QConLondon? Check out @asubiotto.com's talk on how we test our database(s) in an effort to not let critical bugs ever hit production! Today at 10:35AM GMT.
Location
Windsor (5th Fl.)
Track
Native Languages - and Wasm
qconlondon.com/presentation...
See profiling data right in your IDE/texteditor! (*and* make it available to your favorite AI)
This one has been a long time coming, excited to finally have shipped it!
If you ever wondered how profilers work ๐ค
Without requiring privileges and Kubernetes-specific code (I realize you could have passed the node name via downward API and check, but that requires privileges and Kubernetes-specific code).
There has been a really exciting movement in Kubernetes to actually acknowledge datacenter topology, and I don't see enough people talking about it. This one might seem small, but it opens up possibilities for applications needing to care about network topology.
kubernetes.io/blog/2025/12...
I'm happy to share that I will be speaking at #QConLondon on March 16 on deterministic simulation testing at Polar Signals. For anyone interested in attending: SPEAKER60QUK26 for ยฃ60 off
We just made it even more convenient to use Polar Signals with your favorite AI!
The payloads are often ~10mb or higher, and lz4 still has a ~2.5x compression rate on this particular data.
Nice write-up! We recently did a similar latency analysis to decide whether or not to compress a payload we return to a user. Even a purejs lz4 implementation easily did close to 700mb/s. So breakeven is at a user having a >5gbit/s conn, which no client of ours has, therefore no-brainer.
Another @github.com outage? Actions not starting/reported.
#FOSDEM was a ton of fun this year! Check out our recap if you missed any of our talks!
(also FOSDEM is always a better time if you don't catch fosdem-flu which thankfully I didn't this year!)
Do I know anyone who has successfully set up Google Workspace user sync and SSO with Azure (as in Google Workspace is the primary)? I could use some help (support has not been helpful).
Brennan telling #FOSDEM how to use Parca to profile Rust workloads!
Polar Signals at #FOSDEM 2026 day 2!
Both talks in the Rust room.
Profiling Rust applications with Parca
Brennan at 12:30 @ UB2.252A (Rust)
fosdem.org/2026/schedul...
Frederic at 16:00 @ UB2.252A (Rust)
Random seeds and state machines: An approach to DST in Rust
fosdem.org/2026/schedul...
@thorfour.dev telling #FOSDEM about our new rust-based database (with lots of open source inside!)
@gnurizen.bsky.social showing us how we can get a memory profile just when your process is about to be killed by the OOM killer.
All of this is right up my alley! Would love to meet!
FWIW the Polar Signals crew will be around the eBPF, Databases, and Rust devroom pretty much throughout.
Very excited for this year! Who else will be there?