Maybe this exists and I haven’t found it yet but a lightweight logging/alerting solution would be nice. That way, I don’t have to invest in Datadog with all the extra bells and whistles targeted for enterprise customers.
The problem is there are piecemeal solutions to the several of the parts of this problem, but not all, and some of them are really hard to meaningfully self-host without significant risk or complexity (ie. full text search engine). I'd personally love to build something like this, but I absolutely would sell yearly licenses and not have it be fully open source.
ntfy (pronounced notify) is a simple HTTP-based pub-sub notification service. It allows you to send notifications to your phone or desktop via scripts from any computer, and/or using a REST API. It's infinitely flexible, and 100% free software.
I personally am a big fan of self-hosting Sentry via their Helm chart. It's quite easy if you know your way around Kubernetes, but it probably also doesn't qualify as lightweight.
