The diversity of Linux distributions is one of its strengths, but it can also be challenging for app and game development. Where do we need more standards? For example, package management, graphics APIs, or other aspects of the ecosystem? Would such increased standards encourage broader adoption of the Linux ecosystem by developers?
One that Linux should’ve had 30 years ago is a standard, fully-featured dynamic library system. Its shared libraries are more akin to static libraries, just linked at runtime by ld.so instead of ld. That means that executables are tied to particular versions of shared libraries, and all of them must be present for the executable to load, leading to the dependecy hell that package managers were developed, in part, to address. The dynamically-loaded libraries that exist are generally non-standard plug-in systems.
A proper dynamic library system (like in Darwin) would allow libraries to declare what API level they’re backwards-compatible with, so new versions don’t necessarily break old executables. (It would ensure ABI compatibility, of course.) It would also allow processes to start running even if libraries declared by the program as optional weren’t present, allowing programs to drop certain features gracefully, so we wouldn’t need different executable versions of the same programs with different library support compiled in. If it were standard, compilers could more easily provide integrated language support for the system, too.
Dependency hell was one of the main obstacles to packaging Linux applications for years, until Flatpak, Snap, etc. came along to brute-force away the issue by just piling everything the application needs into a giant blob.
I find the Darwin approach to dynamic linking too restrictive. Sometimes there needs to be a new release which is not backwards compatible or you end up with Windows weirdness. It is also too restrictive on volunteer developers giving their time to open source.
At the same time, containerization where we throw every library - and the kitchen sink - at an executable to get it to run does not seem like progress to me. It’s like the meme where the dude is standing on a huge horizontal pile of ladders to look over a small wall.
At the moment you can choose to use a distro which follows a particular approach to this problem; one which enthuses its developers, giving some guarantee of long term support. This free market of distros that we have at the moment is ideal in my opinion.
The term “dependency hell” reminds me of “DLL hell” Windows devs used to refer to. Something must have changed around 2000 because I remember an article announcing, “No more DLL hell.” but I don’t remember what the change was.