Typesense - Typo tolerant, delightfully simple, open source search 🔍
Platypus - Realtime server monitoring and reporting
Expertrec - Adds super fast search autocomplete, spell correct and search listing pages to your site search.
Datadog - See metrics from all of your apps, tools & services in one place with Datadog's cloud monitoring as a service solution. Try it for free.
Appbase.io - Search stack for building modern apps
Nagios - Complete monitoring and alerting for servers, switches, applications, and services