Apps and Homey’s core are run in different processes, so if an app can cause a memory leak inside Homey’s core, the problem is in Homey’s core (the SDK provides the interface between the app and core, so if an app developer would cause a memory leak inside the SDK, the problem would show up on the app side, not the core side).
At least one known memory leak in Homeyscript is caused by a library that Athom uses to implement the fetch command, something that a Homeyscript developer cannot change or fix.
