Update build docs in README, remove obsolete bits

The site design standards page on my website obsoletes some README docs.
Remove the obsolete bits and update the build docs to the point at which
anybody should be able to rebuild my site.

README.md

@@ -1,5 +1,4 @@
-seirdy.one
+# seirdy.one
-==========
 
 [![sourcehut](https://img.shields.io/badge/repository-sourcehut-lightgrey.svg?logo=data:image/svg+xml;base64,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)](https://sr.ht/~seirdy/seirdy.one) [![GitLab mirror](https://img.shields.io/badge/mirror-GitLab-orange.svg?logo=gitlab)](https://gitlab.com/Seirdy/seirdy.one) [![GitHub mirror](https://img.shields.io/badge/mirror-GitHub-black.svg?logo=github)](https://github.com/Seirdy/seirdy.one) [![Codeberg mirror](https://img.shields.io/badge/mirror-Codeberg-blue.svg?logo=codeberg)](https://codeberg.org/Seirdy/seirdy.one)
 
@@ -9,125 +8,62 @@ Code for my personal website, [seirdy.one](https://seirdy.one). Built with Hugo.
 
 Also builds my Gemini capsule: <gemini://seirdy.one/>.
 
-Dependencies
+I document [my site design standards](https://seirdy.one/meta/site-design/) on my website.
-------------
 
-To build:
+## Dependencies
 
-- Hugo 0.93 or later
+### Build-time dependencies
+
+- Hugo. I usually use the most recent version of Hugo at the time of publishing, but it _should_ work with any version of Hugo v0.116.0 or later (v0.116.0 had an improvement to `where` that I might use).
 - bmake or GNU Make. OpenBSD make (omake) should work too, but I haven't tested it.
 - Git (Hugo uses Git info for features like date last updated)
-- [htmlq](https://github.com/mgdm/htmlq), to parse HTML when fetching some webring links and for some post-processing.
+- curl, for fetching some webring code and all my webmentions. **this requires authentication.** When running locally, it invokes `pash`, my password manager; when running in CI, it reads a file for a secret. You may have to modify `scripts/get-webmentions.sh` to avoid this.
-- POSIX utils: `grep`, `find`, POSIX-compliant `/bin/sh`, etc.
+- POSIX utilities: `grep`, `find`, `sed`, POSIX-compliant `/bin/sh`, etc. Tested to work with Busybox and GNU Coreutils.
 
-Before deploying, I use some tools to process the output.
+Before deploying, I use some tools for post-processing:
 
 - `xmllint`, part of libxml2, to format the generated polygot XHTML5 markup.
-- [sd](https://github.com/chmln/sdA) (for advanced multi-line regex operations, much of which exist to fix `xmllint`'s output)
+- a [patched version of html-tidy](https://git.sr.ht/~seirdy/tidy-html5)
-- a patched version of html-tidy
+- More POSIX utilities.
 
 I also apply static compression at max levels, using the following tools:
 
-- [Efficient Compression Tool](https://github.com/fhanau/Efficient-Compression-Tool) It's like zopfli but more efficient and faster.
+- [Efficient Compression Tool](https://github.com/fhanau/Efficient-Compression-Tool) It's like zopfli but more efficient and faster. If you don't have it installed, it should be trivial to edit `scripts/compress.sh` to replace `ect` with `gzip` or `zopfli`.
 - Brotli
 
-To deploy:
+I package all build-time dependencies _except_ curl as statically-linked binaries in a tarball, available at <https://seirdy.one/pb/binaries.tar.gz>.
 
-- rsync, with SSH and zstd support
+### Other dependencies
+
+To deploy, I use rsync with SSH and zstd support.
+
+Further tasks also use additional command-line utilities such as `sd`, `htmlq`, and a version of `xargs` that supports the `-P` flag (nearly all versions of `xargs` do, but it's not POSIX). I run all npm packages using `pnpm -s dlx` (similar to `npx`).
 
 To lint:
 
-- stylelint, invoked using pnpm.
+- Stylelint
-- [lychee](https://github.com/lycheeverse/lychee), to check broken links.
+- [html-validate](https://html-validate.org/)
-- A very recent build of the w3c's [Nu HTML checker](https://github.com/validator/validator) to validate the HTML and XHTML.
+- A very recent build of the W3C's [Nu HTML checker](https://github.com/validator/validator) to validate the HTML and XHTML, available on your `$PATH` as `vnu`. I have a very simple shell-script wrapper for this that invokes `java -jar`.
-- [jq](https://stedolan.github.io/jq/), to filter false-positives from the Nu HTML checker.
+- [jq](https://stedolan.github.io/jq/), to filter false-positives from the Nu HTML checker and to verify that JSON files parse.
+- [HTMLProofer](https://github.com/gjtorikian/html-proofer), version 5 or later. Requires Ruby.
 
-Build instructions
+More in-depth local tests:
-------------------
+
+- Axe-Core, using the CLI and a headless browser (Firefox or Chromium).
+- IBM Equal Access Checker, using the CLI and a headless Chromium. Runs on a patched version of the site with a modified stylesheet due to a bug (reported upstream).
+
+Remote tests:
+
+- Lighthouse
+- WebHint (might not pass; only informative)
+- Feed validator (requires Python)
+
+## Build instructions
 
 - To just build the HTML: `make hugo`
 - To build the polygot formatted HTML and XHTML: `make hugo xhtmlize`
 - To lint and validate: `make hugo xhtmlize lint-local`
-- To build everything and compress: `make hugo xhtmlize compress`
+- To build everything and compress: `make hugo xhtmlize compress copy-to-xhtml`
-- To deploy the clearnet site and corresponding Tor hidden service: `make deploy-prod deploy-onion`
+- To deploy the clearnet site and corresponding Tor hidden service: `make deploy-prod deploy-onion`. 
 
-`make` can parallelize only a little, since many jobs depend on previous jobs.
+`lint-local` and deployment tasks support limited parallelization with `-j`.
-
-Compatibility
--------------
-
-I made the site as inclusive as possible. Tested using multiple screen readers (Orca, TalkBack, Apple VoiceOver, Windows Narrator, NVDA), and I regularly test with the following browsers/engines. Testing in a browser does not imply any sort of endorsement; I just want to meet people where they're at and I want my site to be as robust as possible.
-
-For all the listed options, I test "reading mode" whenever it's available. Most of my testing happens on Linux since that's my main OS, but I sometimes test on a Windows machine.
-
-The main compatibility issue is a lack of support for `<details>`; the only non-mainstream engine to support it is Servo. The site is still perfectly usable without support for `<details>`; users will just be annoyed by pre-expanded toggle buttons that don't do anything.
-
-### Desktop
-
-Mainstream engines:
-
-- Gecko: Nightly, Stable, ESR, and sometimes Pale Moon
-- the Tor Browser
-- Blink: latest Chromium snapshot, stable, and QtWebEngine
-- WebKit, via Webkit2GTK3
-
-Non-mainstream engines:
-
-- NetSurf
-- [The SerenityOS Browser](https://github.com/SerenityOS/serenity/tree/master/Userland/Libraries/LibWeb) (does not yet support ECDSA-based certs, so I test on my Tildeverse mirror). Known issue: SVG avatar doesn't render unless I view it in a new tab.
-- Very old WebKit via rekonq (Qt4 QtWebKit).
-- KHTML (KF5), via Konqueror.
-- Servo
-- Tkhtml, via Hv3 (no TLS 1.2, so I use a terminating proxy or localhost version)
-
-Tested on a provisional basis, when I have access to a Windows machine:
-
-- [Winternight Classic](https://github.com/ClassicNick/Crescent-Vine).
-- IE 11.
-- Even older WebKit, via Safari 5.1.7. Requires a TLS terminating proxy.
-- Ancient Gecko, via NetScape Navigator. Requires a TLS terminating proxy.
-
-Desktop screen readers tested:
-
-- Orca
-- NVDA
-- Windows Narrator
-- TODO: borrow someone's mac and test macOS VoiceOver.
-
-### Mobile
-
-- Android: Blink, Gecko, Tor Browser
-- iOS WebKit: latest stable version, iOS 12, iOS 10 on an iPhone 5. Also tested Reader Mode.
-- TODO: try a KaiOS device and Samsung Internet's dark mode.
-
-The site should work well even on viewports that are under 240 CSS pixels wide.
-
-Mobile screen readers:
-
-- TalkBack
-- VoiceOver
-- TODO: test KaiOS Readout
-
-### Smart watches
-
-- Borrowed an Apple Watch to try the embedded browser.
-- TODO: test on a Tizen or Wear OS device's browser (Samsung Internet is a popular choice)
-
-## Accessibility
-
-To my knowledge, this site meets all applicable WCAG 2.2 AA requirements.
-
-This site meets all applicable WCAG 2.2 AAA requirements, with the following exceptions:
-
-- SC 1.4.8 Visual Presentation: long article body text for articles should have an average character count per line below 80 characters. Some lines may exceed this limit. Text outside of article bodies has a longer line width.
-- SC 2.4.9 Link Purpose (Link Only): I mostly follow this guideline, but there may be some exceptions. Link purpose in context is always clear, though.
-- SC 3.1.5 Reading Level: the required reading ability often exceeds the lower secondary education level
-- SC 3.1.6 Pronunciation: I do not yet provide pronunciation information.
-
-I have only tested WCAG compliance in mainstream browser engines (Blink, Gecko, WebKit).
-
-I also go further than WCAG in many aspects.
-
-- Rather than follow SC 2.5.5's requirement to achieve a minimum tap target size of 44 by 44 pixels, I follow Google's more strict guidelines. These guidelines mandate that targets are at least 48-by-48 pixels, with no overlap against any other targets in a 56-by-56 pixel range.
-- I ensure at least one such 56-by-56 pixel non-interactive region exists on the page, for users with hand tremors or or anyone who wants to tap the screen without clicking something.
-- I only set custom colors in response to the `prefers-color-scheme: dark` media query. These custom colors pass APCA contrast ratios, all being close to the ideal lightness contrast of 90. They are also autism- and overstimulation-friendly colors: yellow links are significantly de-saturated to reduce harshness.