From a security standpoint, having a single key for an integration is really problematic. If that key gets compromised, an attacker will gain access to all accounts where the integration is installed.
I really want a per-installation secret which I would use instead of the Integration key to generate Installation Access Tokens. They key would be generated at installation time, and it would be my responsibility to store it, just as with integration keys.
Are there any plans to provide that capability?