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Rondo Dondo

@maplant.com
204 followers 182 following 963 posts

NYC based programmer. I mostly talk about implementing functional programming languages

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Rondo Dondo @maplant.com · 01/10/2026
The final form:
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Rondo Dondo @maplant.com · 29/09/2026
None of the programs I tried for uploading worked, so I asked Claude to write me my own. I think it's because I wasn't running them as root, but still
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Rondo Dondo @maplant.com · 29/09/2026
I’ve reached levels of pretension previously unheard of
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Rondo Dondo @maplant.com · 21/09/2026
what the hell
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Rondo Dondo @maplant.com · 18/09/2026
Pretty happy with these performance improvements, but there's still a long way to go
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Rondo Dondo @maplant.com · 11/09/2026
Disagree, the new king seiko vanac bracelets look awesome
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Rondo Dondo @maplant.com · 15/07/2026
Couldn't sleep so I did some optimizing. Well, that's not accurate. I couldn't sleep because I was doing some optimizing
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Rondo Dondo @maplant.com · 04/07/2026
New Value representation. Oh yeah, that's the stuff
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Rondo Dondo @maplant.com · 04/07/2026
I’m so confused
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Rondo Dondo @maplant.com · 04/07/2026
Led Zeppelin? The English band?
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Rondo Dondo @maplant.com · 10/06/2026
This one felt really good:
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Rondo Dondo @maplant.com · 20/05/2026
Coming soon, scheme-rs-lsp!
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Rondo Dondo @maplant.com · 20/05/2026
not sure why it was important to get my IR to print out actual valid Scheme code, but I find it kind of funny
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Rondo Dondo @maplant.com · 12/05/2026
beautiful
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Rondo Dondo @maplant.com · 05/05/2026
Wait till you see what mine can do
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Rondo Dondo @maplant.com · 25/04/2026
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Rondo Dondo @maplant.com · 03/04/2026
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Rondo Dondo @maplant.com · 25/03/2026
Maybe you have. I've been saying this for years
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Rondo Dondo @maplant.com · 24/03/2026
I finally spent five seconds making my CPS IR more easily readable. Makes me want to write some optimization passes…
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Rondo Dondo @maplant.com · 20/03/2026
I’ve never been more insulted that they didn’t consider this a word
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Rondo Dondo @maplant.com · 19/03/2026
This has been the biggest reading event since 1Q84, and I don't say that lightly
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Rondo Dondo @maplant.com · 11/03/2026
This is a little clunky, but honestly kinda cool that this works. Reading the value returned spawn will block until it's available
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Rondo Dondo @maplant.com · 24/02/2026
I normally do not mind it all, but occasionally you do hit a corner case with the Rust borrowchecker and you're best option is just trying random permutations until it accepts it. For example, almost all sensible compactions of this function failed, and this is what I was left with:
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Rondo Dondo @maplant.com · 20/02/2026
This has to be the most oddly specific fortune cookie fortune I’ve ever seen
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Rondo Dondo @maplant.com · 14/02/2026
scheme would be so ahead of its time if R7RS large was released ten years ago with prompt handlers
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Rondo Dondo @maplant.com · 13/02/2026
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Rondo Dondo @maplant.com · 12/02/2026
only very tangentially related but this thread reminded me of the fake jerseys my friend and I made for a counter strike tournament
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Rondo Dondo @maplant.com · 09/02/2026
Somehow Tim Brady has the grossest patek I've ever seen
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Rondo Dondo @maplant.com · 05/02/2026
But it can buy twitter, which in many ways, is the exact opposite thing
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Rondo Dondo @maplant.com · 05/02/2026
coming soon (as digital ocean fixes their shit)
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Rondo Dondo @maplant.com · 04/02/2026
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Rondo Dondo @maplant.com · 04/02/2026
Scheme-rs async networking documentation
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Rondo Dondo @maplant.com · 02/02/2026
I love programming
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Rondo Dondo @maplant.com · 10/01/2026
Ah yeah, that's the stuff
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Rondo Dondo @maplant.com · 10/01/2026
I hate that I’ve become a watch guy sort of but I’m obsessed with this one
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Rondo Dondo @maplant.com · 08/01/2026
After much rigamarole, I'm back to having the platonic ideal of a CPS IR:
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Rondo Dondo @maplant.com · 02/01/2026
You're totally right. The doctors who wrote that socializing is a "fundamental human need" would never be so quick to view socializing as a good thing for human health in such black and white terms
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Rondo Dondo @maplant.com · 02/01/2026
sir/madam those "external beliefs" come from doctors
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Rondo Dondo @maplant.com · 23/12/2025
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Rondo Dondo @maplant.com · 22/12/2025
I could see how you could use it for that, but it seems like a lot of parts to clean for something that is essentially a tea infuser
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Rondo Dondo @maplant.com · 07/12/2025
oooh yeah, that's the stuff
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Rondo Dondo @maplant.com · 24/10/2025
Behold, my beautiful proc macros that let me avoid importing the maybe_async crate
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Rondo Dondo @maplant.com · 18/10/2025
Aw yeah, that's the stuff
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Rondo Dondo @maplant.com · 14/10/2025
Special preview of my talk on scheme-rs coming up this thursday
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Rondo Dondo @maplant.com · 05/10/2025
my girlfriend and I found a Tomato plant on the sidewalk someone was giving away for free at the beginning of summer, so we decided to plant it. It never bore any fruit but it did get pretty big
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Rondo Dondo @maplant.com · 02/10/2025
IMO there’s literally nothing better than a big pot of greens and beans
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Rondo Dondo @maplant.com · 01/10/2025
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Rondo Dondo @maplant.com · 01/10/2025
How you feel when you don’t respond to a stupid post
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Rondo Dondo @maplant.com · 16/09/2025
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Rondo Dondo @maplant.com · 12/09/2025
Don't use macros! Macros are bad! Instead do... whatever this is
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