Hi,
I mentioned this already few times, I would like one day to find the time and budget to build the following:
an online ecosystem that will host all custom actions. This ecosystem would work both ways. You can submit a custom action ( you register to that ecosystem as an author), then the custom action can be moderated, reviewed, rated, commented, etc etc.
you can also search that ecosystem right from within unity ( and ideally from the action browser), and you would get a list of custom actions that match your search, EVEN if it's not on your project assets, click on an import button, and the action is downloaded in the background and added to the project asset, and boom, you have your custom action ready to be added to your state. you haven't searched the forum, you haven't left playmaker action browser, and you haven't had to manually download a file, add it to the asset folder, etc...
that's huge and totally mandatory in my opinion... just totally lacking budget and time for this, that's all...
the big thing around this ecosystem is that it can be monetized easily by having maybe a registration fee or a yearly subscription, or free but with some micro payments where 'some' custom actions would cost few pennies to get ( for a given account, not a per projects). This ecosystem could also very likely host more than custom actions: templates for examples and other goodies revolving around playmaker. You could also request actions via this ecosystem and get registered authors bidding for this, creating a whole market around this.
I do not necessarily agree to give everything for free, that's not a viable business strategy after a certain level of service. That some custom actions are available for free is of course totally fine, but at some point, it is important to realize the amount of work involved in creating custom actions in volumes, a small, totally fair fee would be welcome here, at least to incite authors to publish their actions and for developers to realize they any way save money with micro payments
Any other methods to distribute and bundle custom actions will be a nightmare, custom actions must be in my opinion handled on a server with a proper database and repository, bundling unity packages will be tedious ( and it is now for me to manage all the custom actions I did so far...) and prone to error, as well as featuring 99% actions you don't need, do not fit your assets, your publish targets, your unity version or requires some other assets from the unity asset store... so definitely not a good option for scalability.
Note: If some investors are interesting in this, let me know, I can build all that ( the whole server side, database, web front end, user management, payment options, and the unity integration. BUT it is a very bold project, involving and requiring proper funding, quality time and dedication.
one day for sure!
bye,
Jean