ls ~/compare
Comparisons.
Which one fits when? Decision help from operations, not from a brochure.
SAML · OIDCSAML vs OIDC: which SSO protocol fits?Both protocols give you single sign-on, but they come from different eras and behave differently day to day. This is the comparison from an operations point of view.Nextcloud · SeafileNextcloud vs Seafile: which file platform fits?Both are self-hosted alternatives to Dropbox and similar services, but they take different approaches. Nextcloud is a collaboration platform, Seafile is first of all a file sync system.HTTP-01 · DNS-01Let's Encrypt: HTTP-01 or DNS-01 challenge?With HTTP-01 the server proves control via a file on port 80, with DNS-01 via a TXT record in the zone. That affects wildcards, firewalls and security.SPF / DKIM · DMARCSPF, DKIM and DMARC: what does what?The three records are usually mentioned together, but they solve different problems. SPF and DKIM produce check results, DMARC decides what happens with them.Nextcloud AIO · Manual installNextcloud AIO or manual installation?Nextcloud AIO ships everything as preconfigured Docker containers. The classic installation puts web server, PHP, database and Redis together yourself. Both run reliably, but responsibilities differ.nginx · Apachenginx vs Apache for PHP applications with PHP-FPMWith PHP-FPM neither web server runs PHP itself any more, they just pass requests on. The differences are mostly in configuration, .htaccess and day-to-day operations.systemd timers · cronsystemd timers vs cron: which to use?Cron is one line and available everywhere. systemd timers need two files, but bring logging, catch-up of missed runs and resource control.S3 Object Storage · NFS / Block StorageNextcloud primary storage: S3 or NFS/block storage?The primary storage choice is hard to change later. It decides how files are stored, how you scale and how backup and restore work.