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Epiktistes

Epiktistes is my home in the Fediverse. It is an instance of Ktistec, a single-user ActivityPub server like Mastodon, but with fewer users and fewer commits. Here's my introduction (last updated early-2025).

I wrote a series of posts about optimizing the performance of the Ktistec server, its build time, and its executable size: part 1, part 2, part 3, part 4, and part 5.

Some things I regularly write about, organized by hashtag:

I also wrote some #pointfreeverse.

Todd Sundsted posted Jan 1, 2021

Todd Sundsted posted Jan 1, 2021

it’s not a prime but happy new year 2021!

Todd Sundsted posted Dec 31, 2020

Todd Sundsted posted Dec 30, 2020

went back in time and liked a bunch of old posts.

Todd Sundsted posted Dec 30, 2020

commits 2ce62db...86822f5 implement support for typical social signals, like share/boost and like.

performing and visualizing simple interactions are table stakes for socializing in the fediverse, so it's an important milestone. i got one like. i want more! 😉

if you're a fan of the crystal programming language check out ktistec. if you're brave enough to try it, i'd love feedback!

#ktistec

Todd Sundsted posted Dec 29, 2020

lessons

asterite is correct. named tuples in crystal are seemingly attractive (compile-time type checking of keys and values) but quickly become a trainwreck as the compiler specializes every method receiving them (passing/receiving **options is definitely a code smell). every possible permutation of keys and values is a new type and results in a specialized copy of a method, increasing build time and executable size.
crystal + sqlite continue to perform well. i recently released code that computes and displays social signals like boosts/shares and likes as part of the content in the timeline. even though counts are aggregated on the fly, rendering is still brisk—about 780msec to fetch and render 1000 posts from the main timeline.

#ktistec

Todd Sundsted posted Dec 28, 2020

i'm seeing the weirdest kind of phishing lately. it's inbound as candidates applying for software engineering jobs, but with the sketchiest imprint on the internet imaginable. the last one i looked at listed a company at which he'd been employed the last two years—which, when googled, resulted in a browser redirected tour of spam sites.

Todd Sundsted posted Dec 28, 2020

the kids always know what to get me.

Todd Sundsted posted Dec 23, 2020

i feel like "ozymandias" would be a great name for a cat. pride and ruin describe a few cats i’ve known.

Todd Sundsted posted Dec 22, 2020

saki after last week’s snow storm in nyc