Hacker News: agambrahma

Show HN: Try Gerbil Scheme in the Browser

agambrahma — Mon, 16 Mar 2026 02:10:27 +0000

Gerbil is a Scheme built on Gambit that compiles to native code via C. It has an actor-oriented concurrency model, a rich module system, and a batteries- included stdlib. I built a browser playground to make it easy to try without installing anything.

Briefly: - A real REPL with state that persists between expressions - 10 guided examples from basic Scheme through pattern matching, hash tables, higher-order functions, and actors (but, do go to https://cons.io for the full docs) - A scratchpad for multi-line code that evaluates into the live REPL session - Snippet sharing via short URLs

To keep this short, some implementation details here: https://abacusnoir.com/2026/03/15/a-playground-for-gerbil-sc...

(Does have limitations in this early version, see the post for details on those too)

Comments URL: https://news.ycombinator.com/item?id=47394356

Points: 9

# Comments: 1

Show HN: Patchwork – async collaborative image quilts

agambrahma — Mon, 09 Mar 2026 16:12:34 +0000

When my kids were young we'd flip restaurant menus over and fill a hand-drawn grid with crayon doodles, one square at a time. I wanted to turn that ritual into an app.

Patchwork lets you create an NxN grid, share an invite link, and have collaborators claim and fill squares with images asynchronously.

Squares are visible as they're filled: the quilt builds up slowly over hours or days, and checking back to see what someone added is the whole point.

Comments URL: https://news.ycombinator.com/item?id=47310990

Points: 1

# Comments: 0

New comment by agambrahma in "Amazon degraded shopping- you have to put in cart to see the price"

agambrahma — Thu, 05 Mar 2026 21:13:20 +0000

Tried mobile app, mobile website, desktop website

Cannot place an order to ship (!)

New comment by agambrahma in "Ask HN: Share your personal website"

agambrahma — Thu, 15 Jan 2026 19:22:40 +0000

https://agambrahma.com -- linking out to places where my identity is spread out right now

New comment by agambrahma in "UAPs as Coherent Field Entities"

agambrahma — Sat, 29 Nov 2025 06:11:44 +0000

Applied plasma physics (spheromaks, solitons, field topology) to UAP observations. Explains the "five observables" better than the spacecraft model ... though radar signatures and energy density remain problematic (!)

Speculative but grounded in real physics (I used ChatGPT/Gemini as thinking partners, then verified claims)

UAPs as Coherent Field Entities

agambrahma — Sat, 29 Nov 2025 06:11:44 +0000

Article URL: https://abacusnoir.com/2025/11/29/field-entities-not-craft/

Comments URL: https://news.ycombinator.com/item?id=46085507

Points: 1

# Comments: 1

New comment by agambrahma in "The Greatness of Text Adventures"

agambrahma — Tue, 21 Oct 2025 18:18:54 +0000

Or Eastgate, or Storyspace?

https://www.eastgate.com/

New comment by agambrahma in "The Greatness of Text Adventures"

agambrahma — Tue, 21 Oct 2025 18:18:02 +0000

No one mentioned "Avatar MUD" ?

https://www.outland.org/news.php

New comment by agambrahma in "AppLovin nonconsensual installs"

agambrahma — Tue, 14 Oct 2025 23:19:13 +0000

Sorry, couldn't help myself

https://imgflip.com/i/a940ug

New comment by agambrahma in "Stripe Launches L1 Blockchain: Tempo"

agambrahma — Thu, 04 Sep 2025 18:22:56 +0000

[I'm likely missing something, but]

"EVM-compatible, built on Reth" => they're essentially building a private Ethereum fork with a fancy validator selection process.

Couldn't they just get these benefits (predictable fees, fast settlement) by ... running a database between these financial institutions?

If Stripe controls the validator set (even indirectly), then ... just a distributed database with extra steps, no?

Show HN: macOS Gemini/Cerebras text quick-chat app

agambrahma — Tue, 02 Sep 2025 05:48:27 +0000

I've built a native macOS AI chat application that supports both Gemini and Cerebras providers through a single interface. You can choose between either depending on what each conversation needs, then select a model from either. Text only. Everything stays local to your mac.

Comments URL: https://news.ycombinator.com/item?id=45099531

Points: 1

# Comments: 0

New comment by agambrahma in "OpenBSD is so fast, I had to modify the program slightly to measure itself"

agambrahma — Fri, 15 Aug 2025 20:02:48 +0000

So ... essentially testing file descriptor allocation overhead

New comment by agambrahma in "Coalton Playground: Type-Safe Lisp in the Browser"

agambrahma — Thu, 14 Aug 2025 01:16:04 +0000

Fixed now, let me know if you find something broken

New comment by agambrahma in "Coalton Playground: Type-Safe Lisp in the Browser"

agambrahma — Thu, 14 Aug 2025 01:15:16 +0000

Fixed now

New comment by agambrahma in "Coalton Playground: Type-Safe Lisp in the Browser"

agambrahma — Wed, 13 Aug 2025 20:31:13 +0000

Thanks, I'll take a look and fix them soon

New comment by agambrahma in "Coalton Playground: Type-Safe Lisp in the Browser"

agambrahma — Wed, 13 Aug 2025 20:30:47 +0000

Thanks, I'll fix them soon

New comment by agambrahma in "Show HN: Coalton Playground – Type-Safe Lisp in the Browser"

agambrahma — Tue, 12 Aug 2025 17:39:58 +0000

Reference for Coalton:

https://coalton-lang.github.io

Show HN: Coalton Playground – Type-Safe Lisp in the Browser

agambrahma — Tue, 12 Aug 2025 17:39:39 +0000

I built a browser-based REPL for Coalton, a statically typed Lisp dialect that merges Haskell’s type system with Common Lisp.

Coalton gives you: - Algebraic data types, pattern matching, static guarantees - Full interoperability with dynamic Lisp functions

Demo & examples: https://coalton.app

Under the hood: Prebuilt SBCL cores with Coalton preloaded, running on a droplet

Comments URL: https://news.ycombinator.com/item?id=44879518

Points: 19

# Comments: 1

New comment by agambrahma in "Build durable workflows with Postgres"

agambrahma — Fri, 08 Aug 2025 22:04:09 +0000

Curious how this compares to Cloudflare, which is the other provider that is really going for simplified workflows

New comment by agambrahma in "Mountain of Ink"

agambrahma — Fri, 01 Aug 2025 06:32:09 +0000

I think people over-complicate fountain pens a lot.

I have a Lamy Safari that I got in 2012 and works just as well today.

It's what I still recommend to anyone who asks what to get.

Just get the pen, with its cartridge, add more cartridges -- you can stay here and already you're way better than with most standard ball pens that you'd be using otherwise.

Then, get the small converter, plop it in, get your first bottle of ink -- and again you can stay here and enjoy your pen-and-ink experience for a long long time.

Now if you want to try a few different inks, do that next. Maybe get a second pen, see whether 'fine' or 'medium' sized nibs is more your thing.

Go further than that if you want, but you don't have to.

Either way, that first step is enough to improve your life a lot