Talking with Ilya, I realized that we're only able to capture a partial view of the Dev Spaces users in the Developer Sandbox with Amplitude. Ilya can see 719 users in the last 30 days, but in Amplitude we only see 480. 

The top theory as to why: some users connect using IntelliJ and are not tracked. 

I'd like to have an event for those users in Amplitude/segment so that we're able to get a full picture of Dev Spaces usage on Developer Sandbox in Amplitude.