Epiktistes

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Introduction	https://epiktistes.com/introduction
GitHub	https://github.com/toddsundsted/ktistec
Pronouns	he/him
🌎	Sector 001

Todd Sundsted posted Dec 7, 2025

I've improved federation support for Lemmy and other servers that support FEP-1b12 Group Federation.

I had to increase the number of available file descriptors on my personal server 4x because of the resultant inbound volume of ActivityPub activities! I liked a federated post and DOSed my server.

#ktistec #activitypub #fediverse

Todd Sundsted posted Dec 3, 2025

Release v3.2.2 of Ktistec

The big feature in release v3.2.2 of Ktistec is pinned posts with support for the Mastodon Featured Posts collection. Federation works both ways—pin a post on Ktistec and it will show up as a pinned post on Mastodon and vice versa. When you refresh an actor profile, Ktistec also fetches and updates the actor's pinned posts. This is another small step in the direction of supporting all features that Mastodon-compatible client applications expect to access via the API. It's also useful in its own right.

The other major feature, which I posted a short video demonstrating here, is X-Ray Mode. X-Ray Mode is a developer and power-user tool for inspecting ActivityPub JSON-LD representations of actors, objects, and other content. Pressing Ctrl+Shift+X on any page displays the data behind the page—like an x-ray. You can:

Cached Version: View the local JSON-LD representation stored in the Ktistec database
Remote Version: Fetch and view the original JSON-LD representation from the source server
Navigation: Click on any ActivityPub IRI to navigate to that object
History: Use Alt+Left and Alt+Right to navigate through your viewing history

This feature is useful for debugging federation issues, understanding ActivityPub structures, and verifying how content is stored and represented.

Here's the full changelog for the release:

Added

Support for pinned posts and the Mastodon "featured posts" collection.
X-Ray Mode for viewing and navigating JSON-LD resource (actor, object, etc.) representations.
Back links on thread pages for easier navigation. (fixes #1)
License page for LibreJS compliance. (fixes #127)
Highlighting of recently fetched hashtagged posts.

Changed

Improved presentation of audio and video media.
Refactored theming/styling implementation.

The next release will focus on smaller features and bug fixes.

Enjoy!

#ktistec #crystallang #activitypub #fediverse

Todd Sundsted shared a note by mozilla.ai Dec 2, 2025

The recording of Davide Eynard’s (@mala) “Build Your Own Timeline Algorithm” talk from SFSCON is now live.

In the session, Davide walks through how to build a local, customizable timeline algorithm using https://Mastodon.py, llamafile, and marimo.

Watch the full video: https://www.sfscon.it/talks/build-your-own-timeline-algorithm/

Todd Sundsted posted Dec 3, 2025

Joining my first D&D 2024 campaign tonight. Leaning toward playing a Sorcerer. I haven't paid even the slightest bit of attention to the evolution of the new rules, so I'm interested to see how it feels...

#dnd #dnd2024

Todd Sundsted posted Dec 2, 2025

would a "more from this actor" button be helpful on #ktistec? the use case is 1) navigate to an actor you're thinking of following, 2) click on "more from this actor" to fetch ~10 additional, recent posts. is there another feature that would be more useful?

Todd Sundsted posted Nov 30, 2025

I've streamlined theme development in Ktistec. The theming system uses a hierarchy of CSS custom properties and fallbacks. Theme authors can customize a theme at multiple levels:

Base Colors Only

Define only base colors like --text-primary, --bg-primary, --bg-input, --semantic-primary, etc. Derived colors will auto-generate using color-mix formulas. For example:

:root { --semantic-primary: #ffa500; }

From this one line, theme-appropriate colors like --bg-accent-code, --anchor-color, etc. auto-generate.

Base Colors Plus Derived Colors

Define base colors and derived colors. Derived colors use custom values when defined. Undefined derived colors auto-generate. For example:

:root {
    --text-primary: #333;
    --text-primary-2: #ff0000;  /* red for this specific shade */
}

Given this theme, derived shades like --text-primary-1, --text-primary-3, and --text-primary-4 auto-generate. --text-primary-2 is red.

The simplest possible interesting theme redefines the primary semantic color. The single line above (in Base Colors Only) would result in the following, with button color, link color, disabled, selected, and hover states all derived automatically:

screenshot of the setting page with the primary semantic color defined

These changes will be in the upcoming release. Existing themes will continue to work, as is.

#ktistec #crystallang #activitypub #fediverse

Todd Sundsted posted Nov 28, 2025

Experimenting with x-ray mode for ktistec.

#ktistec #activitypub

Todd Sundsted posted Nov 27, 2025

Release v3.2.1 of Ktistec

Release v3.2.1 of Ktistec adds support for bookmarking posts. This was so immediately useful I don't know why it took me so long to get around to it!

Pinned/featured posts are in the works for the next release.

The full changelog:

Added

Support for bookmarking posts.

Fixed

Invalidate user's sessions after changing password.
Ignore supplied languages that don't conform to expected format.

Changed

Upgrade Kemal.

In other thoughts... I'd like to make followed hashtags more consumable. I follow ~10 hashtags and: 1) it's hard to tell what's new, 2) it feels like they arrive in large batches that are difficult to digest, and 3) the reading experience is meh.

#ktistec #fediverse #activitypub #crystallang

Todd Sundsted posted Nov 23, 2025

It’s never the compiler or standard library.
It’s never the compiler or standard library.

Sometimes it’s the standard library…