The stuff for my own blog
On the webserver an Apache redirect rule redirects from index.html to the last active year (e.g. 2021.html). This allows links to work in the future, but index.html still "seems to work". This needs to be updated every year!
ServerName elm.finde-ich-super.deServerAdmin ...
DocumentRoot /var/www/...
ErrorLog ${APACHE_LOG_DIR}/elm_http_error.log
RewriteEngine on
RewriteCond %{SERVER_NAME} =elm.finde-ich-super.de
RewriteRule ^ https://%{SERVER_NAME}%{REQUEST_URI} [END,NE,R=permanent]
Redirect 301 /index.html /2021.html
ErrorLog ${APACHE_LOG_DIR}/elm_https_error.log
SSLEngine on
Include /etc/letsencrypt/options-ssl-apache.conf
SSLCertificateFile /etc/letsencrypt/.../fullchain.pem
SSLCertificateKeyFile /etc/letsencrypt/.../privkey.pem
</VirtualHost>