This is actually my test event generator, but I decided to make it publicly available. It's going to get increasingly complex, as the test data gets complex, but will stay a CLI, so that you can run it from other programs with a shell command. Might eventually become an API, dunno.
I have to always be one step ahead of nostr:nprofile1qqs8qy3p9qnnhhq847d7wujl5hztcr7pg6rxhmpc63pkphztcmxp3wgpz9mhxue69uhkummnw3ezuamfdejj7qgmwaehxw309a6xsetxdaex2um59ehx7um5wgcjucm0d5hsz9nhwden5te0dehhxarjv4kxjar9wvhx7un89uqaujaz and the #Alexandria client.