I worked with Apple to get Cyberdog opensourced. One of the hangups was the freaking GIF patent. Damn Compuserve. Never ended up happening.
I had a few utilities. A window manager, for example. And PartBank was the registry and online store for software. Important, because if you open the document and you are missing software, it was impossible to view. But since I had a registry of viewers and how to install them, it solved a few problems. I spoke at WWDC and MacWorld about these things. This was the App Store I wanted bundled into the OS.
I had another utility called Kantara Internet Search Service (KISS). My young baby self had gotten a deal to sell 1 million copies of it to Apple to include on the install for education. Steve Jobs killed that deal too. Sigh.