I don't know if this has been asked for and I'm not about to spend an hour looking through posts to find out. However, what we need is the GOG DOSBox framework they use to package these older games. It could be for sale at a reasonable price.
Many of us have games that are older and won't run on the newer systems. That's why we re-buy what we already own in many cases. We don't want to spend the time to figure out DOSBox and all the settings etc. for our old games.
GOG could create a general framework program that would allow us to use a script or simple recipe to get our old games going using it. The program would spawn a separate instance of the files required to run an old game with the appropriate settings.
Some of us do this now, trying to get older games to work, but the process is quirky and flawed. GOG could do us all a huge favor by creating a program to help us get our old games running and working in optimal ways. This should not interfere with the sale of older games to newer customers who don't already have these old games in the closet. I'd even be willing to pay $50 for such a program as long as it was updated with new scripts/instructions for the older games as they are figured out. Make it easy on us who hate to program. What do you think?

Not likely to happen.

There is DOSBox, that is free to download and usually a quick search helps you find what you need to setup a certain game. Learning how to setup things in DOSBox takes maybe a handful of hours though but that will be of use to you for all DOS games.

That's counter to what GOG is about. They want you to buy their games not get the ones you already bought working (which most work fine without doing anything anyway).

Take your $50 and donate it to DOSBox and/or DBGL or mabye save it for retirement or buy yourself a couple of good meals.

There's been talk of hashing executables and creating several conf files per game depending on what configuration people want. ("best" video, "best" sound, etc etc) but it's only ever been talk. It really wouldn't take that much from the coding side but the testing and validation would be a pain.