> Pixelmator was one of the apps that was extremely-tightly-integrated with Apple's APIs and ecosystem
While I can understand that companies want to build cross platform applications, something like Pixelmator shows us what can be done if you take advantage for the platform you're targeting. We're not seeing that often enough anymore.
The few other times I've seen code that truly uses the operating system and APIs it's mostly been server software. It's not unique to macOS either, Windows provide a ton of APIs as well.
While I can understand that companies want to build cross platform applications, something like Pixelmator shows us what can be done if you take advantage for the platform you're targeting. We're not seeing that often enough anymore.
The few other times I've seen code that truly uses the operating system and APIs it's mostly been server software. It's not unique to macOS either, Windows provide a ton of APIs as well.