fix: Bump hextra and hugo

[yibeichan]

Updated description (asmacdo 2026/05/12)

I went ahead and bumped hugo and hextra, which were both quite behind. The RSS template override turned out not to be necessary with modern hextra. Did some minor fixes to get the site up to date with the modern versions.

Mostly identical, though there are some changes in the layout, particularly the width. IMO we should poke around on the preview, and merge this one as is (ish), and open up followups if anything looks a little off. (The only slight annoyance I had was the spacing on the home page).

Original Description (yibei)

What this changes

Adds a local override of the Hextra RSS template plus a small params.author block in hugo.yaml, so hugo server works on Hugo 0.160+ (the version most maintainers have installed locally).

This is the change that was originally bundled into #468 (the FAQ PR). Per @asmacdo's request on that PR, splitting it out so the FAQ work can land on its own.

Why it's needed

Hextra v0.8.3's layouts/_default/list.rss.xml references .Site.Author.email and .Site.Author.name. Hugo 0.156 deprecated and Hugo 0.160 fully removed the .Site.Author field on the page.Site type, so when local maintainers run hugo server with a recent Hugo, the build fails with:

ERROR ... template: list.rss.xml:7:50: executing "list.rss.xml" at <.Site.Author.email>:
  can't evaluate field Author in type page.Site

netlify.toml pins Hugo 0.132.2 for production deploys, so the live site isn't affected — this is a local-dev problem only.

What's in the patch

• layouts/_default/list.rss.xml — local copy of Hextra's template that reads site.Params.author.{email,name} instead of the removed .Site.Author.{email,name}. Hugo's lookup order picks up the local layout before the theme module, so the theme isn't modified.
• hugo.yaml — adds params.author (name, email) so the override has values to read from.

+params:
+  author:
+    name: ReproNim
+    email: info@repronim.org

This is intended as a stop-gap

@asmacdo noted on #468 that "I hope we can also bump the theme and avoid the new override." That's the right long-term fix. If a Hugo + Hextra bump resolves the .Site.Author issue, this PR can be closed without merging — the override exists only because the current pinned Hextra v0.8.3 still uses removed Hugo APIs.

If you'd rather hold this until the bump lands, I'm happy to leave it open as a fallback or close it now.

Test plan

• On a checkout of this branch with Hugo ≥ 0.160 installed, run hugo server — should start cleanly with no list.rss.xml template error.
• Same checkout, run hugo --gc — exit 0, no errors.
• Visit http://127.0.0.1:1313/index.xml — RSS feed renders, contains <managingEditor>info@repronim.org (ReproNim)</managingEditor>.
• Sanity-check Netlify preview — site builds and looks unchanged (Netlify uses Hugo 0.132.2 where this issue doesn't manifest).

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[gemini-code-assist]

Code Review

This pull request introduces a local override for the RSS template and updates the site configuration to include author information, addressing compatibility issues with Hugo 0.160+ where the legacy .Site.Author is no longer supported. The review feedback identifies potential template evaluation errors when accessing site parameters and suggests using defaults to ensure the build remains robust even if specific configuration keys are missing.

[Copilot]

Pull request overview

This PR updates the site’s Hugo/Hextra dependencies and configuration to be compatible with newer Hugo versions, and adjusts shortcodes accordingly.

Changes:

• Bump Netlify’s Hugo version and the Hextra Hugo Module version.
• Update data-file access in two shortcodes.
• Add params.author in hugo.yaml (intended to support RSS metadata).

Reviewed changes

Copilot reviewed 6 out of 7 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
netlify.toml	Updates Netlify build Hugo version pin.
layouts/shortcodes/people.html	Changes how the shortcode reads from Hugo data/.
layouts/shortcodes/fellows-resources.html	Changes how the shortcode reads from Hugo data/.
hugo.yaml	Adds params.author values for RSS-related metadata.
go.mod	Bumps the Hextra module version.
go.sum	Updates checksums for the new Hextra module version.
.devcontainer/devcontainer.json	Removes the devcontainer configuration.

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[asmacdo]

PR description updated

[asmacdo]

Sending an email to the web group to poke around between the updated version and the current version to give us a chance to compare to the old way before it goes away, and potentially file issues if we want to fix stuff.

[yarikoptic]

preview works, everyone AFAIK was happy, and links are bad anyways

so let's proceed!