First working prototype

.env.example

@@ -0,0 +1,11 @@
+# Copy to .env and edit before `docker compose up -d`.
+
+# The public domain this instance answers on. Caddy obtains and renews a
+# Let's Encrypt certificate for it automatically.
+#
+# The domain must already resolve to this server, and ports 80 and 443 must be
+# reachable from the internet — port 80 is what the ACME challenge uses.
+SITE_ADDRESS=timelog.example.com
+
+# Notified by Let's Encrypt before a certificate expires. Optional but advised.
+ACME_EMAIL=you@example.com