Hacker News: cantdutchthis

Pixi adds non-Python deps to Python notebooks

cantdutchthis — Mon, 28 Sep 2026 08:53:01 +0000

Article URL: https://marimo.io/blog/pixi-sandboxes

Comments URL: https://news.ycombinator.com/item?id=49875282

Points: 1

# Comments: 0

New comment by cantdutchthis in "Marimo now runs in PyCharm"

cantdutchthis — Sat, 25 Jul 2026 13:55:51 +0000

Vincent D. Warmerdam ;) there are a bunch of Dutch people who otherwise have the same name.

People also know me from the calmcode youtube channel and https://calmcode.io website

New comment by cantdutchthis in "Marimo now runs in PyCharm"

cantdutchthis — Sat, 25 Jul 2026 05:36:17 +0000

marimo dev here.

Just wanted to mention that you're always able to do this:

for _x in range(100): ...

This way, `_x` is detected as a throwaway Python variable. And it won't re-appear in other cells.

Also, within the same cell you can always re-assign. But you can't do that in another cell. We want to ensure that a variable is fully declared in one, and only one, cell.

``` # cell A, totally fine

a = 1 for _ in range(100): a = a + 1

# but don't re-assign a in another cell. ```

New comment by cantdutchthis in "Marimo now runs in PyCharm"

cantdutchthis — Sat, 25 Jul 2026 05:32:30 +0000

marimo dev here, the pitch that got me working there is widgets!

This video highlights some fancy tricks: https://www.youtube.com/watch?v=qVSeOr3AIbc

Marimo now runs in PyCharm

cantdutchthis — Wed, 22 Jul 2026 10:24:40 +0000

Article URL: https://marimo.io/blog/pycharm

Comments URL: https://news.ycombinator.com/item?id=49004464

Points: 130

# Comments: 38

New comment by cantdutchthis in "What I learned selling 2,500 MIDI recorders: Hardware is not so hard"

cantdutchthis — Sun, 19 Jul 2026 13:44:45 +0000

Reading these kinds of stories always make me happy. Well done!

New comment by cantdutchthis in "David Beazley – Programming Courses"

cantdutchthis — Sat, 04 Jul 2026 09:58:10 +0000

Noticed a similar thing with calmcode.io, the numbers don't lie. At the same time though, the setup of that site is so light/cheap that it remains zero effort to just keep the tutorials up.

In hindsight, I am _very_ happy that I never made that project into a main source of income.

New comment by cantdutchthis in "Claude Science"

cantdutchthis — Wed, 01 Jul 2026 17:43:05 +0000

Not to mention the fact that marimo-pair also supports non-Claude models.

Blades.css is an updated fork of pico.css

cantdutchthis — Tue, 30 Jun 2026 07:10:29 +0000

Article URL: https://blades.ninja/

Comments URL: https://news.ycombinator.com/item?id=48729467

Points: 3

# Comments: 0

New comment by cantdutchthis in "[dead]"

cantdutchthis — Wed, 28 Jan 2026 19:20:39 +0000

You can explore the tool on desktop (via webassembly) over at: https://koaning.github.io/wigglystuff/examples/chartpuck/

It's part of wigglystuff, and there are way more widgets too! https://koaning.github.io/wigglystuff/

New comment by cantdutchthis in "[dead]"

cantdutchthis — Wed, 28 Jan 2026 18:25:45 +0000

You can explore the tool on desktop (via webassembly) over at: https://koaning.github.io/wigglystuff/examples/chartpuck/

It's part of wigglystuff, and there are way more widgets too! https://koaning.github.io/wigglystuff/

New comment by cantdutchthis in "Ask HN: Is building a calm, non-gamified learning app a mistake?"

cantdutchthis — Mon, 15 Dec 2025 19:31:36 +0000

Multiple people have offered but decided against it for a few reasons.

- Proper reviews actually feel like they would take me as much time as doing it myself.

- One benefit of doing it all myself is that all the content has a familiar style.

- The downside of contributions is that a lot of the stuff that I see on YT just simply doesn't fit the style that I intend to have on calmcode. So before accepting contributions it also feels like I would have to vet the person who makes the contrib.

A lot of the aforementioned is more complex now as well due to the fact that folks can pay for the platform. It was a 100% free platform before, and right now it's a 99% free platform and some people pay a stipend to keep the site running. If contributions come in, I would also need to figure out a way to keep the incentives aligned, which also complicates things.

I've had a collaborator in the past and a bunch of things worked out there. But he's gone off to do other things, all of which is fair enough.

New comment by cantdutchthis in "Ask HN: Is building a calm, non-gamified learning app a mistake?"

cantdutchthis — Mon, 15 Dec 2025 16:59:03 +0000

Creator of calmcode here, AskMeAnything[tm].

New comment by cantdutchthis in "Polars Cloud and Distributed Polars now available"

cantdutchthis — Thu, 04 Sep 2025 09:27:08 +0000

Been a polars fan for a loooong time. Happy to see the team ship their product and I hope it does well!

New comment by cantdutchthis in "Ask HN: How do you fight YouTube addiction and procrastination? I'm struggling"

cantdutchthis — Sun, 31 Aug 2025 18:08:26 +0000

i’ve used freedom.to at times to just turn off all distractions, works pretty well

New comment by cantdutchthis in "SpaCy: Industrial-Strength Natural Language Processing (NLP) in Python"

cantdutchthis — Wed, 27 Aug 2025 05:55:37 +0000

former employee here, Matt wrote a blogpost with pretty much all of the details here: https://honnibal.dev/blog/back-to-our-roots

New comment by cantdutchthis in "Representing Python notebooks as dataflow graphs"

cantdutchthis — Sat, 09 Aug 2025 17:20:20 +0000

Fun detail, you can actually define functions in a marimo notebook and load them in another Python file if you want.

Needs a bit of extra config but tis a really nice feature.

https://docs.marimo.io/guides/reusing_functions/

New comment by cantdutchthis in "Representing Python notebooks as dataflow graphs"

cantdutchthis — Sat, 09 Aug 2025 17:16:30 +0000

It certainly has some of the “widget feelings” from streamlit but the real killer feature is that you’re still always in a notebook. You can still explore with these widgets, which is a stellar experience.

Cline Feels Like an Upgrade

cantdutchthis — Mon, 21 Jul 2025 10:38:32 +0000

Article URL: https://koaning.io/posts/cline-feels-like-an-upgrade/

Comments URL: https://news.ycombinator.com/item?id=44633645

Points: 2

# Comments: 0

New comment by cantdutchthis in "Show HN: Molab, a cloud-hosted Marimo notebook workspace"

cantdutchthis — Fri, 18 Jul 2025 18:42:28 +0000

Everyone: don't push live on a Friday. marimo: ... hold my beer