README.md

@@ -151,6 +151,7 @@
 * [Cobbler](http://cobbler.github.io/) - Cobbler is a Linux installation server that allows for rapid setup of network installation environments.
 * [Cracow Cloud One - Polish Private Cloud](http://cc1.ifj.edu.pl/) - The CC1 system provides a complete solution for Private Cloud Computing.
 * [Eucalyptus](https://www.eucalyptus.cloud/) - Private cloud software with AWS compatibility.
+* [Flynn](https://flynn.io) - PaaS
 * [Mesos](http://mesos.apache.org/) - Develop and run resource-efficient distributed systems.
 * [OpenNebula](http://opennebula.org/) - User-driven cloud management platform for sysadmins and devops.
 * [Openshift](http://www.openshift.org) - PaaS product from Red Hat.
@@ -365,7 +366,6 @@
 * [BounCA](https://bounca.org/) - A personal SSL Key / Certificate Authority web-based tool for creating self-signed certificates.
 * [easy-rsa](https://github.com/OpenVPN/easy-rsa) - bash script to build and manage a PKI CA.
 * [Smallstep Certificates](https://smallstep.com/certificates/) - A private certificate authority (X.509 & SSH) and related tools for secure automated certificate management.
-* [ZITADEL](https://github.com/caos/zitadel) - Cloud-native Identity & Access Management solution providing a platform for secure authentication, authorization and identity management.
 
 ## IT Asset Management
 
@@ -390,7 +390,6 @@
 * [Hindsight](http://mozilla-services.github.io/hindsight/) - Stream processing system which may be used for log aggregation (Replaces Heka).
 * [Kibana](https://www.elastic.co/products/kibana) - Visualize logs and time-stamped data.
 * [Logstash](https://www.elastic.co/products/logstash) - Tool for managing events and logs.
-* [Loki](https://grafana.com/oss/loki/) - horizontally-scalable, highly-available, multi-tenant log aggregation system inspired by Prometheus.
 * [Octopussy](http://www.octopussy.pm) - Log Management Solution (Visualize / Alert / Report).
 
 ## Mail Clients
@@ -438,7 +437,6 @@
 * [pyDash](https://k3oni.github.io/pydash/) - Small web-based monitoring dashboard for linux.
 * [Riemann](http://riemann.io/) - Flexible and fast events processor allowing complex events/metrics analysis.
 * [rtop](https://github.com/rapidloop/rtop) - an interactive, remote system monitoring tool based on SSH.
-* [Scrutiny](https://github.com/AnalogJ/scrutiny) - Hard Drive S.M.A.R.T Monitoring, Historical Trends & Real World Failure Thresholds 
 * [Sensu](https://sensuapp.org/) - Monitoring framework.
 * [ServerStatus BotoX](https://github.com/BotoX/ServerStatus) - Display and monitor your servers statistics in a beatiful way.
 * [ServerStatus moejda](https://github.com/mojeda/ServerStatus) - Server Status website script, displays uptime (days), free RAM, free HDD
@@ -636,8 +634,6 @@ Comparison of NoSQL servers: http://kkovacs.eu/cassandra-vs-mongodb-vs-couchdb-v
 
 *VPN software.*
 
-* [Firezone](https://www.firez.one/) - WireGuard based VPN Server and Firewall. 
-* [Headscale](https://github.com/juanfont/headscale) - Self-hostable fork of [Tailscale](https://tailscale.com), cross-platform clients, simple to use, built-in (currently experimental) monitoring tools. 
 * [ocserv](http://www.infradead.org/ocserv/) - Cisco AnyConnect-compatible VPN server
 * [OpenVPN](https://community.openvpn.net) - Uses a custom security protocol that utilizes SSL/TLS for key exchange.
 * [Pritunl](http://pritunl.com/) - OpenVPN based solution. Easy to set up.