Xcode 26 LLM Markdown Summaries Are Actually Useful for Humans

Xcode 26 has a couple of tech docs that are intended to help LLM’s generate modern solutions to coding problems in Swift, but that also contain valuable info for us human readers.

Zettelkasten for Programmers: Documenting Confusing with Swift.SendableMetatype

I got terribly confused reading the API docs on th SendableMetatype protocol. Because I do not yet know the solution, I want to share how I store this in my Zettelkasten for future problem-solving and discussions.

Use clang API notes to Annotate C Header Files for Swifty Module Imports

Doug Gregor shows how to use clang to import a C library with header files that you don’t own in a way that produces very ergonomic Swift APIs with annotations in YAML files.

Auto-Mount Metal Toolchain Using a Launch Service Because Xcode 26 Cannot

Xcode 26 is incapable of compiling Metal shaders on my machine, so I need to help out to mount the appropriate toolchain with a Launch Service

Manually Mount the Metal Toolchain When Xcode Cannot

My computer suffers from Xcode not being able to access the Metal toolchain that is clearly installed on my system. I need to mount the disk image manually to fix this and make the CompileMetalFile error go away.

Emacs Carnival 2026-01: “This Year, I’ll ...”

I’m hosting this month’s Emacs Carnival. Submit your blog posts on the topic “This Year, I’ll ...”, Emacs-related new-year resolutions in January to participate.

Announcing the German Urban Sketchers Index

The unofficial Urban Sketchers Germany index got a webdesign, interactive map and filters to show the 85 groups that we now know of.