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osTicket
The osTicket open source ticketing system official project repository, for versions 1.8 and later
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InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
I like OSTicket. It's great and simple...meant to be helpdesk software but it has basic ticket and knowledgebase features, web login, and runs off MySQL. Will even use LDAP auth if you have it.
For a lighter weight solution I've also heard really good things about Obsidian which would run client side and there's a bunch of options for syncing between computers. It has really nifty mind mapping and hyperlinking features but all your documents stay plain markdown so you can always take them somewhere else later.
I use a Kanban board called Focalboard with "to do, doing, done" set of columns.