Imagine if windows (or MacOS) had a control panel where you could paste "Update subscription URLs", and uses crypto to verify licenses (optionally), and implemented binary diffs and what not, and provided a standard operating system component for navigating, purchasing, and installing/updating software?
They were SO CLOSE with add/remove Programs, and it never went all the way.
IIRC there is the Install-Package Powershell commandlet that might almost be that? But, I think it's still locked to Microsoft's store.
I don't know much about the money/license part UX because I've never paid for software myself. But developers probably won't want to delegate licensing to the OS because this would make it all too easy to crack — it would only take one very simple patch to disable license checks altogether system-wide.
edit: Sparkle already uses a standardized feed format (https://sparkle-project.org/documentation/publishing/). So basically the only thing that's left is to move the update checking and installation logic to the OS as opposed to every app containing a copy of it.
I'm a strong believer, however, in making sure the user has visibility and control into it, so both methods (manually add/remote/check status & API) ought to be available.
Make that API call pop up a dialog or something to ask the user for consent.
It's like governments. It can be a surveillance state ruled by a dictator where everything is regulated and everyone is spied on for the sake of "safety". Or it can be something that offers all the freedom you could possibly want, including the freedom to shoot yourself into the foot, both literally and metaphorically.
When I was younger, I would probably have loved an Android phone but my 2 attempts with Android phones (like the Nexus) recently were terrible compared to my iPhone. I was constantly messing with things to try and get them working, I had to stop tasks and apps constantly in the app manager (and even had to download a different app manager), and was constantly waiting for things. Now, I care more about just being able to pick up my phone and know that it works to do what I want to do at any given point. I'm done messing with things.
I imagine that being completely unusable for a lot of people, and a total disaster of social engineering and malware exploitation.
The real win is empowering developers to reliably communicate these updates to users, and make it simple to update, w/o inundating the user's system tray with 5 different bespoke updaters that act out in different ways.
It’s trivial to suggest a mechanism for consolidating update notifications. That’s a solved problem.
On its own, it does nothing to solve the trust problem.
I suspect the reason something like this hasn't been done is that it's actually a heck of a lot harder than you think.
And given Microsoft's Monopoly nonsense in the 90's they probably did not have the stomach to wipe all the bespoke installer generator products off the map in one stroke.
The difficulty isn't technical, it's social, if you build a third party store you have something like Homebrew or Cocoa. It works, but it's never going to be used by the majority of users.
I deal with this with several dozen other tools on the Mac each using random store and key schemes. Lately I throw in the towel and switch to inferior tools in the app store if I can’t dig up the secret codes to the legacy hoops their devs want me to jump through. Charge me 30% more, no problem, just stop making me waste my time for things that are now solved problems.
This overall simplification and end-to-end trusted curation direction is a minority but well heeled part of the market (happy to spend money on apps if it doesn’t waste their time), and a sort of grand experiment in what users want. If users want a free for all, the majority of the market is still buying those handsets. If not, the option to have a handheld appliance should be available to those who want it.
Seems a shame to appeal to regulation to stomp on user choice where customers speak with their wallets that “please don’t make me think”.