Hacker News: rienbdj

New comment by rienbdj in "A 10 year old Xeon is all you need"

rienbdj — Mon, 01 Jun 2026 10:20:35 +0000

Training AI models to drive valuation reminds me of high frequency trading

New comment by rienbdj in "Show HN: Hsrs – Type-Safe Haskell Bindings Generator for Rust"

rienbdj — Tue, 19 May 2026 08:06:11 +0000

Really cool nice job!

With more and more ecosystem libraries being written in Rust (and a Python wrapper) could this be a way to expand the Haskell ecosystem?

New comment by rienbdj in "Anthropic acquires Stainless"

rienbdj — Tue, 19 May 2026 08:02:16 +0000

Reading what Stainless is/was - why was this a company and not an open source project?

New comment by rienbdj in "Anthropic acquires Stainless"

rienbdj — Tue, 19 May 2026 07:56:55 +0000

Effective AI use (in my experience) has human doing the load bearing parts by hand (schemas, api spec, overall architecture, domain types) then AI fills in the blanks.

New comment by rienbdj in "Content-defined chunking added to Bazel"

rienbdj — Sun, 17 May 2026 07:59:59 +0000

Bazel caches tend to have a size limit.

You need to trust your build execution machine anyway. They have your source code and you will be executing the artifacts that they produce!

New comment by rienbdj in "If AI writes your code, why use Python?"

rienbdj — Tue, 12 May 2026 13:28:54 +0000

The post talks a lot about performance, and indeed Python performance is poor. However, it’s not poor enough to matter in the early stages of most projects.

The larger issue is actually correctness IME. Rust offers a better static-type story than Python, sure. But I would consider Haskell or OCaml to get even further gains.

New comment by rienbdj in "All my clients wanted a carousel, now it's an AI chatbot"

rienbdj — Sat, 09 May 2026 08:16:20 +0000

Bring back lightbox!

New comment by rienbdj in "Mojo 1.0 Beta"

rienbdj — Sat, 09 May 2026 06:47:49 +0000

Does anyone know if Mojo is more suitable for functional programming that Python?

Things like optimizing away object allocations, pure function inlining, tail call optimization?

New comment by rienbdj in "I built a Game Boy emulator in F#"

rienbdj — Fri, 01 May 2026 07:42:21 +0000

Translating library usage from C# to F# is pretty mechanical so not sure if specific docs are needed.

The larger issue is the C# community loves OOP so you often have to wrap these libraries into something more “FP” if that’s how you want to work.

Overall it’s far better than having nothing (looking at Haskell, OCaml as much as I enjoy them!)

New comment by rienbdj in "I built a Game Boy emulator in F#"

rienbdj — Fri, 01 May 2026 07:39:47 +0000

It’s really hard to please everyone all of the time on this front.

This kind of thing is why Roc compiles to WASM but not JS.

New comment by rienbdj in ""Parse, don't validate" through the years with C++"

rienbdj — Thu, 30 Apr 2026 10:06:06 +0000

C++ could use some do-notation

Ask HN: Why didn't functional programming work for you?

rienbdj — Thu, 30 Apr 2026 08:39:41 +0000

For those who have attempted to use a functional programming language (Haskell, Clojure, OCaml, F#, Elm, …) and failed to have it stick -

What went wrong? What roadblocks did you run into?

Comments URL: https://news.ycombinator.com/item?id=47959820

Points: 16

# Comments: 1

New comment by rienbdj in "Functional programmers need to take a look at Zig"

rienbdj — Thu, 30 Apr 2026 08:25:20 +0000

Question for Zig users:

Can comptime blow up compile times? Does it have arbitrary cutoffs like C++ template depth?

New comment by rienbdj in "Functional programmers need to take a look at Zig"

rienbdj — Thu, 30 Apr 2026 08:24:13 +0000

The issues with Go in that article only surfaced at Discord scale.

New comment by rienbdj in "Functional programmers need to take a look at Zig"

rienbdj — Thu, 30 Apr 2026 08:14:08 +0000

I would love a language that distinguishes functions (pure mathematical constructs) from procedures (imperative constructs that map in a predictable way to the instruction set).

This feels like the direction Algebraic Effects might take us.

New comment by rienbdj in "Functional programmers need to take a look at Zig"

rienbdj — Thu, 30 Apr 2026 08:12:37 +0000

I get what you are saying, but…

An exception is different to an Either result type. Exceptions short circuit execution and walk up the call tree to the nearest handler. They also have very different optimization in practice (eg in C++)

New comment by rienbdj in "Functional programmers need to take a look at Zig"

rienbdj — Thu, 30 Apr 2026 07:04:16 +0000

Under this strict definition you can’t even throw exceptions!

New comment by rienbdj in "Functional programmers need to take a look at Zig"

rienbdj — Thu, 30 Apr 2026 05:21:40 +0000

(Pure) expression orientation is the true marker of FP

New comment by rienbdj in "Do you want the US to "win" AI?"

rienbdj — Thu, 23 Apr 2026 11:23:22 +0000

Meta wants the models to be cheap and available because their strength is the context data and platform control.

New comment by rienbdj in "GitHub CLI now collects pseudoanonymous telemetry"

rienbdj — Wed, 22 Apr 2026 16:19:32 +0000

When allocating engineering spend you need to predict impact. If you know how features of GitHub CLI are used and how you can do this more easily.