Update README.md

README.md

@@ -100,6 +100,25 @@ Mumble (OSS TeamSpeak alternative) https://www.mumble.info/
 ### IRC Server
 UnrealIRCD https://www.unrealircd.org/
 
+## Email
+Warning: Email hosting is very difficult to get right. ISPs also tend to block them and your server has no reputation so your emails go to other people's spam boxes. Run at your own risk
+
+### Mail Servers
+Mailcow https://mailcow.email/
+
+Postal https://docs.postalserver.io/
+
+### Webmail Clients
+Roundcube https://roundcube.net/
+
+## Media
+
+### Multimedia
+Jellyfin https://jellyfin.org/
+
+### Large music libraries
+Navidrome https://www.navidrome.org/
+
 ## Infra specific
 ### virtualization
 https://proxmox.com/en/
@@ -123,6 +142,11 @@ Authelia https://www.authelia.com/
 
 ZITADEL https://zitadel.com/
 
+Apereo CAS https://apereo.github.io/cas/current/index.html
+
+### Policy Management
+OPA https://www.openpolicyagent.org/
+
 ### LDAP/User Store
 FreeIPA https://www.freeipa.org/
 
@@ -148,6 +172,8 @@ Boulder (Powers LetsEncrypt) https://github.com/letsencrypt/boulder
 ### Secrets Management
 Vault (open core with minor restrictions) https://www.hashicorp.com/en/products/vault
 
+SOPS https://getsops.io/
+
 ### ZTN/VPN/Remote
 #### ZTN/"ZeroTier-Like"
 NetBird https://netbird.io/