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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.
east village, manhattan, nyc
still one of my favorite places
surprisingly quiet evening
A new patch release Crystal 1.20.1 fixes some regressions and disables Kernel TLS (added in 1.20.0), due to instability.
Read more at https://crystal-lang.org/2026/04/29/1.20.1-released/
i learned to program so that i could write text-based adventure games, so i'm particularly excited about this: 50 Years of Text Games
We released Crystal 1.19.2 to fix the request smuggling vulnerability (already fixed in 1.20.0) and a regression in Range#sample that could eventually lose randomness.
I’m working on handling OAuth token expiry as part of #ktistec Mastodon API support. Is my understanding that Mastodon issues OAuth tokens with no expiration correct?!?
does anyone use GNU Cash? any free (software) alternatives anyone recommends?
This release is a maintenance update: a few bug fixes, a security mitigation worth paying attention to, and some performance improvements for users on slow connections.
It's worth updating to pick up the SSRF (Server-Side Request Forgery) mitigation.
Fixed
Changed
A new Crystal release is out for version 1.20.0
Highlights: `@[TargetFeature]` annotation, new process spawn API, support for kernel TLS and io_uring. The latter requires execution contexts which is now in the final preview.
Read more at https://crystal-lang.org/2026/04/16/1.20.0-released/
EFF is finally leaving X and here is a blog post about why: https://www.eff.org/deeplinks/2026/04/eff-leaving-x
time: <10 minutes