Build location-independent pages only (no base URL at deploy)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01YDRjtmAiNpo5mK5N3d7QwZ

Makefile

@@ -18,9 +18,9 @@ check: build   ## build, then verify every internal link and image
 serve:         ## local preview on http://localhost:1313
 	hugo server
 
-deploy:        ## build for DEPLOY_URL, check, and copy public/ to DEPLOY_DIR
+deploy:        ## build, check, and copy public/ to DEPLOY_DIR (served at DEPLOY_URL)
 	rm -rf public
-	hugo --panicOnWarning --minify --baseURL $(DEPLOY_URL)
+	hugo --panicOnWarning --minify
 	python3 tools/check_links.py public
 	@test -d "$(dir $(DEPLOY_DIR))" || { echo "share not mounted: $(dir $(DEPLOY_DIR))"; exit 1; }
 	mkdir -p "$(DEPLOY_DIR)"

hugo.toml

@@ -1,8 +1,8 @@
 baseURL = "/"
 title = "Old-Computers.com"
 locale = "en"
-disableKinds = ["rss"]
-enableRobotsTXT = true
+# relative URLs only: no absolute address is known at build time, so no feed or sitemap
+disableKinds = ["rss", "sitemap"]
 # pages keep working when the site is served from a sub-directory
 relativeURLs = true