keithamus

Software Cyber Shepherd

Web platform engineer. Participant: WHATWG, CSSWG, ARIAWG, OpenUICG, WebComponents CG

GitHub: https://github.com/keithamus
BlueSky: https://bsky.app/profile/keithamus.social
Website: https://keithcirkel.co.uk
YouTube: https://www.youtube.com/@keithamus

Public Key

npub1j3jxndzkvv3yfvksxz6jpm7ux3nzuj4namf9fu59zlgwt3ezp36ssd7q2w

NIP-05 Address

[email protected]

Profile Code

nprofile1qqsfgerfk3txxgjyktgrpdfqalwrge3wf2e7a5j572z30589cu3qcagpz3mhxue69uhhyetvv9ujuerpd46hxtnfduqs6amnwvaz7tmwdaejumr0ds8wgvhh

Publishing to

nostr.wine

nos.lol

relay.damus.io

Author Public Key

npub1j3jxndzkvv3yfvksxz6jpm7ux3nzuj4namf9fu59zlgwt3ezp36ssd7q2w

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Last Notes

2026-04-01 08:04:34 GMT

Rather than the same old boring internet pranks, I thought I'd build something more fun this April Fools.
CSS or BS. Can you tell your CSS properties names from BS?
https://www.keithcirkel.co.uk/css-or-bs

2026-03-26 10:26:40 GMT

https://github.blog/news-insights/company-news/updates-to-github-copilot-interaction-data-usage-policy/
You know the drill: yet another service really wants to train on your data. Opt out by visiting https://github.com/settings/copilot/features#copilot-telemetry-policy and changing the option to "Disabled".

2025-11-08 17:04:11 GMT

One problem with the web platform I’m thinking about how to solve: keyboard shortcuts.
I’ve written what I see as the requirements here: https://github.com/openui/open-ui/blob/7d69226ed68447fba3a5ab844b7740c8b60e1d2c/site/src/pages/components/shortcuts.explainer.mdx#1-problem-statement
I want to hear from devs who’ve worked on big apps/sites with shortcuts and see what I’m missing, and how they’ve solved this.

2025-11-07 11:03:31 GMT

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it is! It's also getting a lot more prominence in terms of engineering targets, e.g. it is one of our yearly key deliverables to ensure we hit a good % each year. In other words - something the browsers take very seriously and want to improve on.

2025-11-07 10:33:46 GMT

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Are you familiar with the Interop project? Every year all the browsers agree on a set of areas to focus on for interop. e.g. this year: https://wpt.fyi/interop-2025
Do you think we've missed the mark here? Are there areas you think should be paid attention to more?

2025-11-06 09:44:38 GMT

Calling all web developers! Browsers are all meeting up next week (https://www.w3.org/events/tpac/2025/tpac-2025/). I want your voice to be heard! Tell me your biggest problems, and tell me what you want to see from the platform. What problems are tough to solve, but could be easier?

2025-10-20 16:09:37 GMT

This November at the Annual W3C Plenary (TPAC) I'll be discussing "Custom Attributes" https://github.com/w3c/tpac2025-breakouts/issues/46 I'd like to bring the same lifecycle hooks & subclassing of Custom Elements to attributes. I'd _love_ to hear if developers think this is a good or bad idea, and what they'd like to see.

2025-07-01 15:13:56 GMT

Hot off the presses! Firefox Nightly (https://www.mozilla.org/en-GB/firefox/all/desktop-nightly/) adds the new :heading pseudo! Easily style all headings, or use nth-child-like AnB syntax to select a range of headings! Needs `layout.css.heading-selector.enabled` flag enabled. Try it out and let me know your thoughts.
https://cdn.masto.host/indiewebsocial/media_attachments/files/114/778/624/313/152/531/original/026e421c60885b95.png

2025-06-17 17:24:42 GMT

Okay gang, those who sling HTML, CSS, JS, which _Firefox_ bugs are blocking you? Which features do you think need improving? What new features would you like to see? What work would you prioritise? Big or small, bonus points for linking to a bug (even more for filing bugs then linking them)!

2025-05-28 14:48:26 GMT

Hey friends, did you know you can make a modal <dialog> element dismissible by clicking outside (aka light dismiss) by adding `closedby=any` to it. That's it. That's all there is to it.
<dialog closedby=any>
https://developer.mozilla.org/en-US/docs/Web/API/HTMLDialogElement/closedBy
Chrome 134+, Firefox 140+, coming soon to Safari.

2025-04-28 14:04:15 GMT

Browsers used to have a feature where you could add new context menu items. Is this worth reviving? Yes or No? Would you use it as a developer? What use cases do you have? Would you want this as a user?
https://cdn.masto.host/indiewebsocial/media_attachments/files/114/415/962/622/271/288/original/2b75e81cf9110ada.png

2025-02-26 12:56:59 GMT

I wrote a thing for the Chrome Developer Blog; introducing popover=hint.
https://developer.chrome.com/blog/popover-hint

2025-02-24 11:58:10 GMT

Last week I did a little talk on the brand new command&commandfor attributes! And you can watch it right here:
https://londonwebstandards.org/talks/everything-you-need-to-know-about-invoker-commands/

2025-02-08 15:31:43 GMT

I've been using a hand-built oklch CSS colour system for a few personal projects recently, and decided to open source it!
Announcing openswatch v0.1.0. https://www.keithcirkel.co.uk/openswatch/
https://cdn.masto.host/indiewebsocial/media_attachments/files/113/969/014/827/014/726/original/78c7341ecfb84c3c.png

2024-11-21 00:03:21 GMT

https://www.keithcirkel.co.uk/i-dont-have-time-to-learn-react/
I don't have time to learn React.

2024-09-22 04:55:16 GMT

I’m convinced one aspect of RTO is re-enabling managers’ abuse of (some) lost power. When I worked in an office I had managers try and stop me going home, or follow me part way home because “work really needs to get done”. Much harder to pull shit like this on a zoom call.

2024-09-01 16:45:12 GMT

Just open sourced i-html, a modestly sized web component which allows dynamically importing of html fragments inline. It enables some surprisingly nice patterns. https://www.keithcirkel.co.uk/i-html/

2024-08-28 23:40:11 GMT

A few years ago I was all in on k8s. Had myself a home lab so I could learn what I was sure would be required knowledge by this point. Gitops with flux, helm, istio etc. I realised it’s the same set of complexity demons that live in the front end. So I dropped it and went “back” to docker but I still couldn’t shake that feeling. The complexity demon still lurked. So most recently I’ve been scp-ing binaries and writing systemctl scripts and oh boy does it fuckin rock. I’m never going back.

2024-08-18 17:54:34 GMT

I feel like CSS nesting somewhat makes “css modules” redundant. CSS modules try to scope everything to one selector but a lint rule enforcing a single top-level rule per file would enable that, meaning the only other benefit is name collision avoidance which could be solved with another small piece of tooling or sensible directory design.