First implementation (#1)

Reviewed-on: #1

deploy/Caddyfile

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+# Serves the paperspec website built by `python3 tools/site.py` (the `_site/` folder), copied to /srv/www/paperspec.
+# The site mirrors the repository, so every schema is served at its $id and the JSON-LD context at the address
+# layers name; this file sets the media types those addresses need and lets any page fetch them.
+paperspec.scient.ing {
+	root * /srv/www/paperspec
+	encode zstd gzip
+
+	# Every file may be fetched from any origin: JSON-LD processors and schema validators in browsers need it.
+	header Access-Control-Allow-Origin "*"
+	header X-Content-Type-Options "nosniff"
+
+	# file_server keeps a Content-Type that is already set, so these take precedence over its defaults.
+	@jsonld path *.jsonld
+	header @jsonld Content-Type "application/ld+json"
+	@schema path /schemas/*.schema.json
+	header @schema Content-Type "application/schema+json"
+	@jsonl path *.jsonl
+	header @jsonl Content-Type "application/jsonl; charset=utf-8"
+	@package path *.sct.zip
+	header @package Content-Type "application/vnd.scienting.doc+zip"
+	@text path *.md *.py *.sql *.csv *.hex *.toml *.lock *.txt
+	header @text Content-Type "text/plain; charset=utf-8"
+
+	# Pages and the search index change with each release; data files are cached briefly too, since the
+	# addresses stay the same across releases while their contents may not.
+	header Cache-Control "public, max-age=300"
+
+	file_server
+
+	handle_errors {
+		rewrite * /404.html
+		file_server
+	}
+}