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rexledesma.com
rex ledesma
@rexledesma.com
in a previous life: @recurse.com, @dagster.io

🌳 writing referents http://rexledesma.com
this was a crazy find for foodcoop.news. turns out somebody else has also been taking snapshots of the produce prices… since 2013!

and it was @johnresig.com!?

god bless vidalia onions for leading me onto this trail. incorporating this into the site very shortly
February 13, 2026 at 9:34 PM
my favorite part of foodcoop.news is seeing the new arrivals of produce

apparently as of yesterday, the luxury strawberries (Harry’s Berries) are back
February 11, 2026 at 12:46 AM
messages like this keep me going
February 8, 2026 at 2:05 AM
i am now happy with the information density for foodcoop.news/produce @foodcoop.bsky.social
February 6, 2026 at 10:55 PM
i love building software
February 5, 2026 at 4:14 PM
new feature for foodcoop.news!

i added a produce section to keep track of historical price changes of items, see new arrivals, and see what’s gone out of stock at @foodcoop.bsky.social
February 4, 2026 at 9:21 PM
my friends at @recurse.com made a website for a zojirushi water boiler, perfectly christened as spenser

i love it so much

spenser.recurse.com
February 4, 2026 at 6:31 PM
more updates to foodcoop.news for @foodcoop.bsky.social!

you can now search for produce and see price changes at a high level
January 31, 2026 at 5:03 PM
Made something fun for @foodcoop.bsky.social over the snowy weekend :)

It’s called foodcoop.news. It’s a convenient site to stay in the loop with the Park Slope Food Coop!

Here’s what you can do with it…
foodcoop.news
Web app for Park Slope Food Coop members
foodcoop.news
January 26, 2026 at 4:07 PM
new green card and new hair, call him legally blonde
June 20, 2025 at 7:54 PM
i wrote about the new freedoms i’ve exercised since transitioning my undocumented status to permanent residency in the states, and my thought process on joining and learning at the @recursecenter.bsky.social

rexledesma.substack.com/p/beginning-...
🌳 beginning again
on traveling, sabbatical life, and the recurse center
rexledesma.substack.com
June 19, 2025 at 7:55 PM
Some progress from @recursecenter.bsky.social: we have a lovely study group doing Stanford's CS336

The material (from just three lectures) has been so great in building intuition for all the different model matmuls

After 2 weeks, I implemented the transformer architecture in ~250 LOC 🤯
June 17, 2025 at 3:30 PM
I made a mirror of the @foodcoop.bsky.social shift calendar to a shared Google calendar. It gets synced every five minutes.

You can now search open shifts against your personal calendar! Hoping this is a more convenient way to plan your coop labor 😇
April 6, 2025 at 9:41 PM
vibe coding last month with alpaca-3.3-70B-instruct
March 10, 2025 at 8:09 PM
some poor engineer at 𝕏 is probably writing a memo with this exact title as we speak
March 10, 2025 at 5:00 PM
non tech gf is feeling the agi
March 10, 2025 at 4:40 PM
i love the more social shifts at the @foodcoop.bsky.social, the characters you meet are incredible
November 28, 2024 at 1:07 AM