Status update, February 2026

Hi all!

Lars has contributed an implementation independent test suite for the scfg configuration file format. This is quite nice for implementors, they get a base test suite for free. I’ve added support for it for libscfg, the C implementation.

I’ve spent some time working on the go-proxyproto library. While adding support for PP2_SUBTYPE_SSL_CLIENT_CERT (a PROXY protocol addition to carry the TLS client certificate I’ve introduced last month), I’ve fixed large PROXY protocol headers being rejected (TLS certificates can be a few kilobytes), I’ve fixed some issues in the test suite, and I’ve improved the HTTP/2 helper. I’ve merged support for PP2_SUBTYPE_SSL_CLIENT_CERT in tlstunnel, soju and kimchi.

Speaking about soju, delthas and taiite have finished up soju.im/client-cert, a new IRC extension to manage TLS client certificates. Clients can register, unregister, and list TLS client certificates which can be used for authentication for the logged in user. We aim to stop storing plaintext passwords, instead generating a fresh TLS certificate when logging in for the first time and storing its key. Nobody has started working on a Goguma patch yet, but that would be nice!

Goguma now has a brand new shiny website! Many thanks to Jean THOMAS for building it from the ground up. delthas has added a /invite command, I’ve added support for removing reactions (via the new unreact message tag), and I’ve experimented with a Web build of the app (just for fun, with WebSockets connections instead of TCP).

kanshi v1.9 has been released. This new version is the first to leverage vali for Varlink support. The new ...output directive can match any number of outputs, a the new mode preferred output directive can be used to select the mode marked as preferred by the kernel.

I’ve resumed work on oembed-proxy, a small server which generates oEmbed previews for arbitrary URLs. It’s quite simple: send an HTTP request with a URL, it replies with a JSON payload with metadata such as page title, image size, and so on. I plan to use it for IRC clients, to show link previews without leaking the client’s IP address and to make them work on Web clients. I’ve added support for Open Graph, the most widely used scheme to attach structured data to Web pages. I ended up linking with ffmpeg because I figured I would need to eventually generate thumbnails for images and videos. I played a bit with CGo to integrate Go’s streaming io.Reader with ffmpeg’s C API. I had to jump through a few hoops, but it works!

Hiroaki Yamamoto has contributed wlroots support for ext-workspace-v1, and Félix Poisot has upgraded color-management-v1 to minor version 2. Félix also uncovered some holes in our explicit synchronization implementation — we’re in the process of fixing these up now. I’ve started the wlroots release candidate cycle, and I just published RC3 today.

I’ve spent quite some time improving go-kdfs, a Go library for the Khronos Data Format Specification. KDFS defines a standard file format to describe how pixels are laid out in memory and how their contents should be interpreted. I’ve added a bunch of new pixel formats, JSON output for the CLI, unit tests against dfdutils, and a lot of other smaller improvements. I’ve written a wlroots patch to remove a bunch of manually written pixel format tables an replace them with auto-generated tables from go-kdfs. I’ve also added sample position to pixfmtdb, a Web frontend for go-kdfs (see for instance the Y samples on the DRM_FORMAT_NV12 page). Next up, I’d like to add missing features to the kdfs compat command so that wlroots can get rid of all of its tables (better endianness support, and flags to specify/strip some information such as the alpha channel, color primaries or transfer function).

I’m quite happy with all of the good stuff we’ve managed to get over the fence this month! See you in March!