Hacker News

Article URL: https://hftuniversity.com/post/the-c-documentary-won-t-show-you-a-number-i-will

Comments URL: https://news.ycombinator.com/item?id=48429099

Points: 2

# Comments: 0

Article URL: https://www.ft.com/content/b6cac184-75a4-47ab-94c5-5eb8c92cd407

Comments URL: https://news.ycombinator.com/item?id=48429087

Points: 3

# Comments: 2

Article URL: https://pluralistic.net/2026/06/06/applied-counterescatology/

Comments URL: https://news.ycombinator.com/item?id=48429072

Points: 1

# Comments: 0

Article URL: https://pluralistic.net/2026/06/05/defining-humanity/

Comments URL: https://news.ycombinator.com/item?id=48429070

Points: 1

# Comments: 0

I have been coding over four decades, in many languages, on many projects (including Firefox, Final Cut Pro, the Newton, and Fullwrite Professional if you can remember that far back; all these using my "dead-name").

I wrote something small and simple to scratch an itch. It's the UNIX philosophy: small "one-trick ponies", each *really* good at their one trick, then the user can hook them together to solve actual problems. I'm a CLI guy, and for almost everything, I already have this. But not for debugging. The itch I scratched was the connector that enables this philosophy for debugging. That thing is dap-mux. A DAP multiplexer turning a one-to-one protocol into a cooperating session of as many tools as you need to get it done!

How it started: Helix and Python for me (and sometimes IPython), with the rest of my team using PyCharm (which I have long loved!). My team's problem is that they want the PyCharm debugger, and so must be satisfied with the JetBrains editor. *My* problem was I could use a full-blown debugger *or* I could have IPython *or* I could have Helix (or sometimes an unsatisfying combination of Helix and the debugger). That was my "itch".

DAP (Debug Adapter Protocol) is the tantalizing answer, except it isn't. DAP is what editors (that don't want to write their own debuggers) are starting to adopt. The problem with DAP is it's one-to-one. One editor connects to one debugger. Done. Not a solution to my problem. And then suddenly, it *was* the solution. I realized that a DAP multiplexer would let you connect any DAP-aware editor to any debugger for any language, and simultaneously to a REPL, another session of your editor (or a different editor)! With the side benefit that now, like screen or tmux, since each process is its own thing: sessions are durable. Just restart whatever crashed and you're back where you were!

There were hard parts: sequencing, late joiners, state management. Different end-points working on different actions in different sequences but with the same message ids. I solved these problems something like how NAT works. Instead of translating network addresses, though, I'm translating the sequence numbers of each client into something global and ordered, then correctly routing replies back to the end-point awaiting them, while mapping the sequence numbers for those replies back into the space of that end-point. Knowing the current state of the debugger, and replaying that as a message sequence to late joiners lets you start/connect the clients in any order. I chose Python: asyncio fits the I/O-router pattern perfectly, and it lets the IPython extension run in-process rather than over IPC.

There are problems not yet solved: for instance, I think configuration in the clients and/or the startup sequence is too complicated. But it functions! I got what I wanted!

The combination I use every day: Python + debugpy + Helix + IPython, all connected simultaneously. Step with `%n` or `%s`, evaluate expressions with `%eval`, watch Helix track the current line in real time. Rust with codelldb is the second confirmed combination — I debugged a Dijkstra implementation with Helix and a third-party DAP observer tool both connected to the same codelldb session. A community member, Sean Perry, has already built [dap-observer](https://github.com/shaleh/dap-observer), which renders the current frame's variables as a navigable terminal tree. *This* was my exact dream! Small, focused, connectable tools all playing together!

There's so much left to try: other editors, other debug adapters, Windows, other languages. None of this has been touched yet. The most helpful thing now is people testing it with their own setup and reporting what they find. It's time to play!

`uv tool install 'dap-mux[ipython]'` for Python + IPython. `uv tool install dap-mux` for headless use with any language and adapter. No need for any part of the Python ecosystem.

https://github.com/dap-mux/dap-mux

Comments URL: https://news.ycombinator.com/item?id=48429058

Points: 1

# Comments: 0

Article URL: https://thehill.com/homenews/nexstar_media_wire/5912841-doge-plan-would-have-marked-2-7m-living-people-as-dead-whistleblower/

Comments URL: https://news.ycombinator.com/item?id=48429056

Points: 3

# Comments: 0

Article URL: https://www.92ny.org/archives/william-gass-and-john-hawkes

Comments URL: https://news.ycombinator.com/item?id=48429044

Points: 1

# Comments: 0

Article URL: https://www.youtube.com/watch?v=cEbSaWNs9pY

Comments URL: https://news.ycombinator.com/item?id=48429030

Points: 1

# Comments: 0

I like Hammermade shirts but not the price, especially since they go on sale for 50% off on occasion. I also don't like being a product, pop up ads that feel like a minefield, and being directed instead of receiving a service. So I made a simple notification app that the I can drop a product url into, have it find the price, and let me know when it drops or reaches a number I want to pay. If the retailer requires a premium scraping service, the app escalates to that level. The user can opt in or out of paying for that from a prepaid bank of money. They know how much the premium service will cost and how long they can watch the price for a given amount. I tried to keep it very simple and user focused. I will probably add SNS to the email notification, but only once users start asking. It's a free 7 day trial, should be really easy to sign up (I would appreciate feedback on the sign up process), and I think it's pretty sweet. Saved my wife a few bucks on geraniums from Gertens and on some loose leaf tea.

I will never put ads on it or sell user data.

Let me know what you would do differently, Thanks!

Brian

Comments URL: https://news.ycombinator.com/item?id=48428991

Points: 3

# Comments: 0

Article URL: https://0xax.gitbooks.io/linux-insides/content/Booting/

Comments URL: https://news.ycombinator.com/item?id=48428970

Points: 1

# Comments: 0

Article URL: https://computerhistory.org/stories/explorers-of-the-lost-computers/

Comments URL: https://news.ycombinator.com/item?id=48428959

Points: 4

# Comments: 0

Article URL: https://github.com/ioccc-src/winner/blob/master/2025/cable/prog.c

Comments URL: https://news.ycombinator.com/item?id=48428906

Points: 4

# Comments: 1

One agent. Every model. Zero limits

Comments URL: https://news.ycombinator.com/item?id=48428892

Points: 1

# Comments: 0

Article URL: https://vietthan.github.io/blog/2026/06/05/total-engineering/

Comments URL: https://news.ycombinator.com/item?id=48428845

Points: 2

# Comments: 0

Article URL: https://www.youtube.com/watch?v=m7fwbKn9jGk

Comments URL: https://news.ycombinator.com/item?id=48428825

Points: 1

# Comments: 0

Article URL: https://techcrunch.com/2026/06/06/openai-unveils-lockdown-mode-to-protect-sensitive-data-from-prompt-injection-attacks/

Comments URL: https://news.ycombinator.com/item?id=48428738

Points: 1

# Comments: 0

Article URL: https://en.wikipedia.org/wiki/Shadow_blister_effect

Comments URL: https://news.ycombinator.com/item?id=48428737

Points: 1

# Comments: 0

Article URL: https://github.com/w-martin/typedframes

Comments URL: https://news.ycombinator.com/item?id=48428732

Points: 1

# Comments: 1

Article URL: https://deployonfri.day/posts/i-am-giving-up-on-vm-gaming

Comments URL: https://news.ycombinator.com/item?id=48428727

Points: 1

# Comments: 0

Article URL: https://newsletter.semianalysis.com/p/to-boldly-go-the-case-for-space-datacenters

Comments URL: https://news.ycombinator.com/item?id=48428724

Points: 2

# Comments: 0