diff --git a/README.md b/README.md
index 1400dd0..be16322 100644
--- a/README.md
+++ b/README.md
@@ -88,7 +88,6 @@ _See also: [Restic's list of Linux backup software](https://github.com/restic/ot
 
 - [Amanda](https://www.amanda.org/) - Backup and archive many computers on a network to disk, tape changer/drive or cloud storage. ([Source Code](https://github.com/zmanda/amanda)) `MIT` `C`
 - [Backupninja](https://0xacab.org/liberate/backupninja) - Lightweight, extensible meta-backup system, provides a centralized way to configure and coordinate many different backup utilities. `GPL-2.0` `Shell`
-- [BackupPC](https://backuppc.github.io/backuppc/) - High-performance, enterprise-grade system for backing up to a server's disk.. ([Source Code](https://github.com/backuppc/backuppc)) `GPL-3.0` `Perl`
 - [Backrest](https://garethgeorge.github.io/backrest/) - Backrest is a web UI and orchestrator for restic backup. ([Source Code](https://github.com/garethgeorge/backrest)) `GPL-3.0` `Docker/Go`
 - [Bareos](https://www.bareos.org/) - Cross-network backup solution which preserves, archives, and recovers data from all major operating systems. ([Source Code](https://github.com/bareos/bareos)) `AGPL-3.0` `C++/C`
 - [Barman](https://pgbarman.org) - Backup and Recovery Manager for PostgreSQL. ([Source Code](https://github.com/EnterpriseDB/barman)) `GPL-3.0` `Python`
@@ -379,6 +378,7 @@ Open-source code editors.
 - [Authelia](https://www.authelia.com/) - The Single Sign-On Multi-Factor portal for web apps. ([Source Code](https://github.com/authelia/authelia)) `Apache-2.0` `Go`
 - [Authentik](https://goauthentik.io/) - Flexible identity provider with support for different protocols. (OAuth 2.0, SAML, LDAP and Radius). ([Source Code](https://github.com/goauthentik/authentik)) `MIT` `Python`
 - [KeyCloak](https://www.keycloak.org) - Open Source Identity and Access Management. ([Source Code](https://github.com/keycloak/keycloak)) `Apache-2.0` `Java`
+- [Kratos](https://www.ory.sh/kratos/) - Next-gen identity server with Ory-hardened authentication, MFA, FIDO2, profile management, identity schemas, social sign in, registration, account recovery, and IoT auth. Golang, headless, API-only - without templating or theming headaches. ([Source Code](https://github.com/ory/kratos)) `Apache-2.0` `Golang`
 
 
 ### Identity Management - Tools and web interfaces
@@ -482,7 +482,6 @@ _Related: [Metrics & Metric Collection](#metrics--metric-collection)_
 - [Adagios](http://adagios.org/) - Web based Nagios interface for configuration and monitoring (replacement to the standard interface), and a REST interface. ([Source Code](https://github.com/opinkerfi/adagios)) `AGPL-3.0` `Docker/Python`
 - [Alerta](https://alerta.io/) - Distributed, scalable and flexible monitoring system. ([Source Code](https://github.com/alerta/alerta)) `Apache-2.0` `Python`
 - [Bloonix](https://bloonix-monitoring.org/) - Bloonix is a monitoring solution that helps businesses to ensure high availability and performance. ([Source Code](https://github.com/bloonix)) `GPL-3.0` `Perl`
-- [Bosun](https://bosun.org/) - Monitoring and alerting system by Stack Exchange. ([Source Code](https://github.com/bosun-monitor/bosun)) `MIT` `Go`
 - [Cacti](https://www.cacti.net) - Web-based network monitoring and graphing tool. ([Source Code](https://github.com/Cacti/cacti)) `GPL-2.0` `PHP`
 - [cadvisor](https://github.com/google/cadvisor) - Analyzes resource usage and performance characteristics of running containers. `Apache-2.0` `Go`
 - [checkmk](https://checkmk.com/) - Comprehensive solution for monitoring of applications, servers, and networks. ([Source Code](https://github.com/Checkmk/checkmk)) `GPL-2.0` `Python/PHP`