Hacker News: jpettersson

New comment by jpettersson in "Ask HN: Why were OpenAI, Claude, and Grok simultaneously down?"

jpettersson — Thu, 03 Sep 2026 19:38:07 +0000

It isn't done — and what's there is more interesting than expected.

New comment by jpettersson in "Multiplayer: Share tmux sessions (Claude Code, etc.) over LAN and the internet"

jpettersson — Fri, 13 Feb 2026 14:43:07 +0000

Hello!

This is a quick hack, not a company ;) At work we've been huddling around Claude Code a lot recently, so I made this tool to make it more fun. It makes it easy to create and share tmux session over local networks and across the internet via a GCP jump host.

It works like this:

LAN: The host side generates SSH keys that are restricted to a specific tmux session. It prints a join token that the participants can use to join the tmux session.

Internet: The host and collaborators needs to have access to the same GCP project where a small VM acts as a SSH jump host. Otherwise the flow is identical to the LAN flow.

PRs welcome!

Happy collaborative hacking!

Multiplayer: Share tmux sessions (Claude Code, etc.) over LAN and the internet

jpettersson — Fri, 13 Feb 2026 14:43:07 +0000

Article URL: https://github.com/jpettersson/multiplayer

Comments URL: https://news.ycombinator.com/item?id=47003274

Points: 1

# Comments: 1

New comment by jpettersson in "Building an E-Ink Laptop"

jpettersson — Wed, 24 Feb 2021 12:28:00 +0000

I had the same thought. Found this after a quick search: https://github.com/tommythorn/Paperlike-Raspberry-Pi-4

New comment by jpettersson in "FreeCAD: A free and open source multiplatform 3D parametric modeler"

jpettersson — Fri, 18 Sep 2020 11:50:07 +0000

wow, thanks for getting my attention to CadQuery. It looks really promising! It has some of the things I've come to depend on in Fusion 360 which makes it hard to go back to OpenSCAD: workplanes, construction geometry, fillets, etc

New comment by jpettersson in "Ask HN: Who is hiring? (June 2020)"

jpettersson — Mon, 01 Jun 2020 20:39:05 +0000

ekspono | Full-stack, Frontend | Clojure | Stockholm, Sweden or REMOTE in EU | full-time

ekspono is an early stage fintech company founded by a team of experienced technology and finance professionals. Our first mission is to increase transparency and ease of business for quantitative index strategies. Our product is a web based index analytics platform that helps our clients (institutional investors such as pension funds) manage portfolios that span across multiple index providers (banks).

We’re looking to expand our team with talented Software Engineers who are excited about building a SaaS product using Clojure. We’re considering both candidates who are experienced with Clojure as well as candidates who are experienced in other languages and who want to make the transition to working commercially with Clojure(Script).

* Experienced Software Engineer - Full-stack (system design, data model, API services, web applications, infrastructure, data pipeline automation)

* Experienced Software Engineer - Frontend (web applications, data visualizations, API services)

Our stack: Clojure, ClojureScript, Python 3 (data pipelines / calculations), postgres, kubernetes

We’re a small company (4 today) so every team member has the responsibilities and autonomy to drive progress in their area of expertise.

We are primarily looking for full-time arrangements, but for the right person we can be flexible. We can offer employment in Sweden and are open for long term contracts or similar arrangements in other European locations.

If you’re curious, contact us at: people@ekspono.com

New comment by jpettersson in "Show HN: Obsidian – A knowledge base that works on local Markdown files"

jpettersson — Thu, 28 May 2020 14:20:38 +0000

The app looks promising!

If I understand the license correctly there's no way of trying it out for free in a commercial setting. The only use-case I would have for this is as a work tool, but since the license requires me to pay up front I'm not going to try it. A trial period or similar would be nice.

New comment by jpettersson in "Show HN: Secure token authentication for Angular.js and Rails"

jpettersson — Thu, 03 Jul 2014 21:08:57 +0000

Well done! I was working on a similar thing but will check this out instead.

I saw that you are planning on providing examples. It would be very nice with an example of a rails app with the angular app integrated.

New comment by jpettersson in "Basic Concepts of High Availability Linux"

jpettersson — Mon, 24 Mar 2014 09:08:57 +0000

Great overview of the basic concepts, thanks!

New comment by jpettersson in "Visualization: pathfinding algorithms"

jpettersson — Fri, 13 Dec 2013 20:27:22 +0000

Very cool!

New comment by jpettersson in "Show HN: my new app Timebar has a clever UI (I think)"

jpettersson — Wed, 03 Apr 2013 03:26:49 +0000

Great work! This will be my first attempt at a timer based approach to task management. I've been meaning to give it a try for a while and this UI was just too neat to not try.

New comment by jpettersson in "Chrome Inspector Detector"

jpettersson — Sun, 24 Mar 2013 06:54:34 +0000

Great for easter eggs!

New comment by jpettersson in "Debuggex: A visual regex debugger "

jpettersson — Sat, 23 Feb 2013 18:03:39 +0000

This is amazing. Thank you very much!

New comment by jpettersson in "RethinkDB: An open-source distributed database built with love over three years"

jpettersson — Sat, 10 Nov 2012 00:10:41 +0000

Wow, looks great! I'm excited to try it out.

The Github graphs are really interesting too, that's a lot of love/work right there!

https://github.com/rethinkdb/rethinkdb/graphs/impact

New comment by jpettersson in "Show HN: A status dashboard for the NYC power grid"

jpettersson — Sun, 04 Nov 2012 17:12:12 +0000

Ah... I accidentally rounded to zero decimal places. Looks better now.

New comment by jpettersson in "Show HN: A status dashboard for the NYC power grid"

jpettersson — Sun, 04 Nov 2012 16:39:39 +0000

The ConEd data is a nested set of areas where each Area the fields: total_customers, customers_out. It seems there's a discrepancy between the number of customers_out for Manhattan and the sum of customers_out for Manhattans's sub areas.

I've decided to trust the sum of the individual sub areas instead, working on a fix.

New comment by jpettersson in "Show HN: A status dashboard for the NYC power grid"

jpettersson — Sun, 04 Nov 2012 01:23:06 +0000

It's interesting indeed. As of right now it looks like only Manhattan has seen drastic improvements. I hope you get your power back sooner than the 9th!

The coned gem (now https://github.com/ckundo/sandy) is craping data from the official Coned storm central site.

(Thanks, I fixed the typo. As a native Swedish speaker borough is one of those words that make no sense.)

Show HN: A status dashboard for the NYC power grid

jpettersson — Sun, 04 Nov 2012 00:49:39 +0000

Article URL: http://nycpowerstatus.com/

Comments URL: https://news.ycombinator.com/item?id=4738462

Points: 54

# Comments: 16