Andres Moreno

Software flâneur for decades.

Interested in functional programming, Clojure, Scheme, and programming languages in general.

Worried about the state of the planet but won't get into online spats over that.

Suspicious of neoliberals and not interested in interacting with trolls.

Let's keep this corner of the world nice!

Public Key

npub1wdwtj97pjadw763qkrrfgpmfwy0m7j0tuwprq3h4rwlkh9cgefqql2tme8

NIP-05 Address

[email protected]

Profile Code

nprofile1qqs8xh9ezlqewkh0dgstp355qa5hz8alf8478q3sgm63h0mtjuyv5sqpz4mhxue69uhhyetvv9ujumt0wd68ytnsw43qz9thwden5te0wfjkccte9ejxjar5duh8qatzud25ks

Publishing to

relay.mostr.pub

relay.ditto.pub

nostr.land

Author Public Key

npub1wdwtj97pjadw763qkrrfgpmfwy0m7j0tuwprq3h4rwlkh9cgefqql2tme8

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Last Notes

2025-04-27 16:52:07 GMT

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@nprofile…jrff
You are totally right--it is a really tricky problem because you might have other programs and processors running on the machine (e.g., compiling a large program).
I do remember that Fibers did not scale as linearly as one would want from Wingo's talk. But I think it is pretty good.
My solution is OK if the aim is just to cut-off runaway programs that have an infinite loop or are blocking forever. Not very good if you want to be fair.

2025-04-26 21:48:03 GMT

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@nprofile…y8el @nprofile…jrff
Fibers in #guile provides a nice way to compute a function up to a timeout:
https://git.sr.ht/~afmoreno/limiter/tree/main/item/main.scm
Comments/critiques welcome

2025-04-26 21:23:54 GMT

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@nprofile…jrff
Here's the main idea:
https://git.sr.ht/~afmoreno/limiter/tree/main/item/main.scm
I haven't kicked the tires hard but I think the code is correct.

2025-04-26 19:48:08 GMT

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@nprofile…jrff
I think that Fibers does this rather easily.
You spawn a fiber and put the computation on channel A, where it is put on channel B upon completion.
The magic is a choice operation on reading from channel B and a timer.
Your runner creates all this scaffolding and executes a perform operation on the previously defined choice operation.
I think this is the point of Guile Fibers: communicating concurrent execution which in your case involves a timer.
Ping me if you want working code

2025-04-26 15:58:52 GMT

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@nprofile…8f02
Yikes! I was going to go to floss.social but now I am reconsidering!
Please let me know if you find a good option

2025-04-26 15:50:59 GMT

@nprofile…8f02
Have you found good instructions for how to migrate to another instance?
I looked and haven't had a lot of luck finding a simple "how to". It looks like one has to download some data and then upload it.
Any pointers appreciated!

2025-04-21 14:54:31 GMT

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@nprofile…zwgs @nprofile…0v7r @nprofile…fykc
This is fantastic! It is hard to believe that such a small group of folks is bringing so much goodness to Guile!
Congrats to everyone at Spritely!

2025-04-20 15:49:03 GMT

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@nprofile…jrff
Are you implementing this function? Scheme? Fibers?

2025-04-13 15:27:26 GMT

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@nprofile…cvt4 @nprofile…d8h0
He was also a cool dude. I was teaching at a Catholic university in the 90s when he was invited to give a talk, dinner and conversation to follow with the "important people".
He gave his talk, ate, and right after snuck out, connected with some undergraduates, and closed the bar with them in the town next to the campus.
Unlike most academics, he asked them questions instead of talking at them and they loved it.
One of the undergrads was my student.

2025-03-09 22:41:06 GMT

A blog post written to get my head around #guile #hoot and #fibers, based on my 2024 December Adventure:
https://afmoreno.srht.site/blog/guile-hoot-fibers.html
The folks at #spritely were really patient and helpful. I am very grateful for the excellent feedback I received from Dave Thompson. Many thanks to this team!
Any corrections and/or clarifications are really appreciated.
While it is still early days, I think the #spritely software stack is really promising!

2025-01-15 16:14:16 GMT

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@nprofile…jrff
I am very much looking forward to it.
Considering giving up my geiser addiction....

2025-01-14 21:23:03 GMT

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@nprofile…jmss
I just got a proof-of-concept going for using Fibers in Guile-Hoot. The clever piece is code by #spritely which allows for asynchronous messaging.
https://git.sr.ht/~afmoreno/tic-tac-toe
Ping me if you have any questions

2024-12-17 16:07:36 GMT

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@nprofile…tu3k
The idea is that you'd be able to go back to an earlier state of the board and make a move.
This doesn't matter for Tic-Tac-Toe but it is a key feature of event-driven development.
For example, if you hit a bug, you can go back in time and examine state to see what happened. Moreover, if you have a copy of initial state and all your events, you can replay the system to your heart's content until you figure out what went wrong.

2024-12-17 06:32:02 GMT

#DecemberAdventure
Got help getting #Fibers working on #Hoot on the browser. I think I finally have all the pieces for my Tic-Tac-Toe game with time travel.
Daily technical logging has helped me to keep on task. I will keep at it after this adventure is done.

2024-12-16 21:08:24 GMT

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@nprofile…zdmg
Hey, thanks for doing this!
I am a big fan of this little utility!

2024-12-16 03:53:16 GMT

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@nprofile…33hd
Is
https://git.savannah.gnu.org/cgit/shepherd/website.git/tree/herd-demo.scm
not available for inspection?
I get a 502 error when trying to access it.
Just wanted to see how Hoot was being used in the website.
Thanks! afm

2024-12-13 16:45:06 GMT

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@nprofile…jrff
Happy birthday, Andrew!
Wishing you a great weekend!

2024-12-07 17:45:37 GMT

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@nprofile…gyrf
I am genuinely astounded by your superpower for totally random and extreme internet findings.
All the more because you don't seem to be unemployed!

2024-12-06 20:13:21 GMT

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@nprofile…y6g5
break a leg!

2024-11-30 23:36:16 GMT

@nprofile…g668
@nprofile…y6g5 gave me a nudge to take part in this year's #DecemberAdventure
My log: http://localhost:8080/srht/blog/2024-december-adventure.html

2024-11-28 16:51:15 GMT

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@nprofile…gyrf
Marc Andreesen is the polite version. I am so done with tech bros!

2024-11-26 16:28:41 GMT

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@nprofile…jrff
wishing you all the best. Unemployed currently so all I can send are good wishes.

2024-08-30 18:56:48 GMT

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@npub1zgl…rqd7
I have been wanting such a thing since I started learning Guile after a few years with Clojure.

2024-07-08 20:10:49 GMT

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@npub1qu5…4evr
Looking forward to seeing you in town!

2024-06-15 18:20:14 GMT

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@npub1zgl…rqd7
Thanks for sharing! I am having some #guix path issues on Fedora, so this diagram is really handy!

2024-06-12 04:05:47 GMT

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@npub1ced…vlf2
You had mentioned the inclusion of atomics for just this use-case, right?

2024-06-12 03:55:35 GMT

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@npub1ced…vlf2
So Clojureism should be thread-safe?

2024-06-05 18:03:30 GMT

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@npub1ced…vlf2
Oh, that's very cool!
did you succeed on getting srfi-125 packaged in the #guix main channel?

2024-06-05 01:29:14 GMT

@npub1ced…vlf2
Clojureism looks good, but the hash maps are mutable, not persistent, right?

2024-06-04 15:47:31 GMT

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@npub1w66…rc58
Go for it!
You've done a lot to build community, so in this context it is clear that you are not just shilling stuff.
Good luck!

2024-05-28 14:52:10 GMT

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@npub1w66…rc58
Do it!

2024-05-25 16:21:11 GMT

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@npub1ced…vlf2
I got it working too. Very cool!

2024-05-25 16:15:18 GMT

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@npub1ced…vlf2
Yes, I noticed that too so that's why I am puzzled...
Can you send me a link to an update so that I can try to figure it out? I think this is a cool srfi

2024-05-25 16:12:09 GMT

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@npub1ced…vlf2
Rather, when I tried to use it, it wasnt finding srfi-126

2024-05-25 16:11:33 GMT

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@npub1ced…vlf2
I had issues building the prior version--it wasn't finding srfi-126

2024-05-25 15:51:12 GMT

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@npub1ced…vlf2
Nope. Spoke too soon

2024-05-25 15:49:47 GMT

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@npub1ced…vlf2
It works for me:
https://pastebin.com/9CFMZByV

2024-05-25 15:32:54 GMT

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@npub1ced…vlf2
Do you have this directory in your guile_load_path?

2024-05-11 15:39:59 GMT

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@npub1zgl…rqd7
Good luck with your Schengen visa!

2024-05-10 17:51:05 GMT

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@npub1zgl…rqd7 so sorry to hear about your residency issues.
Good luck finding a permanent place that works for you!

2024-04-23 16:53:11 GMT

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@npub1w66…rc58
Blade Runner 2049!

2024-03-30 23:43:47 GMT

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@npub1ced…vlf2
I am sorry about all that is happening in the world.

2024-03-21 18:59:08 GMT

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@npub19cv…qnc3
Maybe you already know this but you can look for packages in a bunch of channels besides the official one here:
https://toys.whereis.xn--q9jyb4c/

2023-12-06 14:35:55 GMT

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@npub1zgl…rqd7
What Guix channel are the IDE components in? I couldn't find them in the regular Guix channel.

2023-09-24 17:09:56 GMT

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@npub1px9…jddc @npub1f3s…jzfc
Did you try the systemcrafters ISO? They have detailed instructions and a video to make it dead simple.
The process above will give you a base generation. Then you can do whatever you want and revert to base of things break.
Good luck!

2023-09-21 16:16:09 GMT

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@npub1ced…vlf2
did you look at the brave clojure job site?

2023-09-13 20:48:29 GMT

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@npub1ced…vlf2 @npub1cww…ny8k @npub1f3s…jzfc @npub1gch…00vs
So you want to update the closure of f?

2023-07-12 03:05:03 GMT

@npub1sys…ckr3
Your talk on dimensional shifting was really interesting--thanks for sharing.
I have been programming for over 30 years and feel that anything that has any complexity ends up becoming a monster over time.
Writing code, turns out, is really, really hard.
Glad to hear it isn't just me!
I'll keep on plugging to see if I stumble upon some epiphany. I doubt that will happen but the journey will be fun!

2023-06-26 19:27:02 GMT

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@npub1ptm…2xku
I have been playing with Guix instead. It is less mature than Nix but the language used, Guile Scheme, is more interesting to me.
Math -> Guile -> Guix -> Emacs -> Everything
is very attractive