Phil Haack

This tweet is pinned to my profile as a representative example of the types of tweets I tweet.

We thought we were fast when we got our feature flag latency spikes under control and our p99 steadily under 100ms. posthog.com/blog/untanglin… Turns out that was child’s play.

Airport lounge bar didn’t have yellow chartreuse for a Naked and Famous so we went with St Germain and it’s pretty good! I call it: Naked and Infamous ¾ oz mezcal ¾ oz Aperol ½ oz St-Germain ¾ oz lime juice

@lucasmeijer @conductor_build Thanks! It’s more barebones, but I like that it’s not trying to intercept Claude so it just works!

@haacked @conductor_build Supacode

I’ve really been enjoying @conductor_build but it’s really buggy for me. Anyone have alternatives they really like?

Great post by my colleague about the work we did to reduce latency spikes in our feature flags service built with rust, Tokyo, and rayon: posthog.com/blog/untanglin…

Resolving gnarly merge conflicts can be a real tedious chore, until now. Grab a structural semantic merge tool, sprinkle a little AI on it, and you're going to have a lot less headaches. haacked.com/archive/2026/0…

My son is doing a school project about Buy Nothing and sustainability. instagram.com/p/DVw5xjujy12/… Drop a comment if you want to help out

@sebastienros @github Yeah, I'm thinking about this for my own org. I like to use the GitHub PR tools to iterate on a PR without creating noise for others. I just do it as a public draft PR now.

@haacked @github Some repos require approval before running workflows, so a private draft would only work for maintainers. Then non maintainers can still use their forks to build the PR.

Hey @github, have you considered private draft PRs? I would like to be able to create a draft PR only I can see that runs CI, copilot, etc. Lets me iterate, before I mark it ready for review to the public.

@tigkindel @github Ha! Exactly! Also, the multiple CI runs it takes to get everything in proper shape.

@haacked @github So no one can see the ai slop it starts with? Asking for a friend, of course.

@sebastienros @github What do you mean?

@haacked @github Would work for repo owners

Credit where credit is due, the new Slack AI bot has been a game changer for finding old slack conversations. I was skeptical, but it actually works for me.

My colleague @dmarticus wrote a great piece challenging the “AI wipes out white-collar jobs in 18 months” narrative. Software development isn’t typing code. It’s ambiguity, constraints, and coordination. That makes it much harder to fully automate: dylanamartin.com/2026/02/21/con…

An amazing rum with a hint of peat!

My shirt keeps telling me that I’m absolutely right.

Wow, ChatGPT suggested I go to aaatravelsupport.com for a travel issue with a AAA booked reservation. That appears to be a phishing site.

@headinthebox Ha! Yeah, worktrees are a little confusing to use. I tried to streamline them with my tree-me shell script: haacked.com/archive/2025/1…

Of course those non-technical people that are not used to the terminal have absolutely no problem understanding Git work trees! Using Git worktrees Claude Code on desktop enables running multiple Claude Code sessions in the same repository using Git worktrees.

Blogged: One year at PostHog haacked.com/archive/2026/0…

I know it's just a stochastic parrot, but sometimes it can be wryly dismissive:

Blogged: Don't sleep on git worktrees like I did. But using them can be a bit of a chore. But here's a script that makes using git worktrees a breeze: haacked.com/archive/2025/1…