New Show Hacker News story: Show HN: BBRouter – Ben Eater's 8-bit computer, simulated on 3D breadboards

Show HN: BBRouter – Ben Eater's 8-bit computer, simulated on 3D breadboards
2 by creack | 0 comments on Hacker News.
Hi HN, I kept wiring Ben Eater's 8-bit computer wrong, so I built a realistic virtual breadboard editor. Some of the nice features are side-by-side diff, scope, schematics auto-sync, auto-router (BBRouter stands for breadboard router), and my favorites: upload from the real Arduino IDE and connect to your AI with MCP, let Claude & co build it or help you troubleshoot. The link is the SAP-1 running. You can orbit it, probe a hole with the scope, slow the clock down, play with the virtual displays for debugging, then you can actually build it following the step-by-step instructions. A side-goal is to create a community, there are quite a lot of simulators out there but mostly offline / too abstract to realistically use it for a real build. I also never found one that had a decent UI/UX and worked well on mobile or with a trackpad. Happy to answer anything, and tell me what breaks. p.s. Maker plan is $7/month; code HACKERNEWS makes the first month free and then $5/month for as long as you keep it.

New Show Hacker News story: Show HN: Othismo, a Runtime for Sandboxed Objects

Show HN: Othismo, a Runtime for Sandboxed Objects
2 by mamidon | 0 comments on Hacker News.
Othismo is a runtime which has a bunch of sandboxed WASM modules talking to each other + the host environment. It's actually hosting its own website right now at othismo.com. This is a project that's been percolating in my head for a while, as a vague desire to make a "better" runtime for software development. But it was never particularly clear for me what that would _actually_ look like. In the last month or so, I felt a bit inspired to ask what such a runtime might look like for agentic development. My hypothesis is that we really can't review 10k+ SLoC pull requests consistently and really understand them. But if we try to have a higher level view of things, we still can't be confident the agent(s) haven't done something stupid and opened a socket or a file somewhere in that 10k+ SLoC. Therefore we need a very clear demarcation between computation and side effects. In Othismo that takes the shape of the image definition files (.oth) which describe the namespace + various type definitions describing what the interface of an object (should) be. It's somewhat like TypeScript, we don't actually do anything to verify an object conforms to this interface. I'd love your feedback on the syntax used to define images overall, I feel like it doesn't do a great job giving me a clear notion of the environment lexically. I'm more comfortable about the syntax for describing the behavior of objects, although things like `operator` and `readonly` are really only necessary because I've not done anything to support auth at the protocol layer yet. You can run the same website hosted at othismo.com with `git clone git@github.com:mamidon/othismo.git` `task run:example:static` You can also play with the namespace interactively with ``` task build:example:static target/debug/othismo shell examples/static/static.rti # print out the namespace(s) target/debug/othismo --check examples/static/static.rti ``` You'll need rust, task (it's like make), and node+npm.

New ask Hacker News story: Ask HN: Opus 5.5 suddenly dumb as rocks?

Ask HN: Opus 5.5 suddenly dumb as rocks?
30 by jahala | 29 comments on Hacker News.
Is it just me, or has Opus suddenly turned dumb as rocks with 0 attention span over the last half day or so? Noticeably worse output across multiple agents on very different projects.

New Show Hacker News story: Show HN: Fabivo – Furniture design from a photo to a numbered cut list

Show HN: Fabivo – Furniture design from a photo to a numbered cut list
2 by superpapotas | 0 comments on Hacker News.
Hello all, Ive been building Fabivo, a free furniture planner that runs in the browser. You sketch it simply by drawing it, (by far my favorite feature of this app), clicking for boards or just selecting some starting designs. But what i think separates fabivo from others its the image to model ai assistant, which took me a looong time to develop and get some quirks fixed, thanks god latest models are focusing on 3d, thats been helping too! The photo part is an image to JSON CAD harness: the model returns a parametric furniture model in mm that the app can build and edit. That harness is also what i benchmark, and honestly its the reason the app exists. I wanted to see if a photo could turn into a plan i could take to the saw. Also finetuned some image models and found interesting stuff, that was a first. My intention was to basically reuse the drawing feature to convert a 2d line sketch from image models like gpt image / nano banana to my parametric model, which "worked", and was actually thinking of using that for prod, but then cheaper/better models at 3d launched, but anyways, i learned a lot! Im getting better performance from my harness than from plain 3js, tho this is anecdotally and havent actually benchmarked it... Happy to answer anything, especially about the harness or the cut order. edit: Adding the numbers, missed them. 17 photos of real furniture, three models, same harness, medium reasoning, same tools. Scored on how close the returned structure and boards are to the gold model, so its my own set. (tho i have a hard time making a good scoring metric... just usually go by look!) Model (medium reasoning) Avg. time / photo Avg. input tokens / photo Avg. output tokens / photo Avg. tool calls / photo GPT-6.1 Terra 9.5 s 30,409 632 1.06 Claude Sonnet 5.5 13.6 s 50,167 1,592 1.18 Claude Haiku 5.5 34.9 s 66,786 6,658 2.35 Terra was both cheaper per photo and the most consistent to my likings. Sonnet was close on quality, Haiku needed way more tool calls to get there.

New ask Hacker News story: Tell HN: I know Firefox has update when it starts to glitch

Tell HN: I know Firefox has update when it starts to glitch
2 by majkinetor | 3 comments on Hacker News.
I keep browser open forever on my media center. Everytime it starts to glitch when opening pages, I restart it, and voila, there is a new tab with "whats new". Amazing really! I don't even want to know the reasons...

New ask Hacker News story: Ask HN: We tax labour, why not tax AI?

Ask HN: We tax labour, why not tax AI?
6 by roschdal | 4 comments on Hacker News.


New Show Hacker News story: Show HN: A Lego-like composable Framework for RSI

Show HN: A Lego-like composable Framework for RSI
8 by ethan1998 | 0 comments on Hacker News.