As a devops I use a wide range of various specialized tools: terraform, Azure Devops pipelines, powershell scripts, bash scripts, docker and dockerfiles, cloud specific tools (az cli, aws cli...)... all for managing environments of various applications.
I keep finding a need for a tool that helps me centralize all devops knowledge about an architecture of a all applications in a single place as well as tool to manage those environments using my own scripts.
Anything that is basically just a simple UI which can manage some basic data about applications, environments and my scripts related to these applications. Something more than a filesystem and Confluence documentation.