The only direct method would be to provide money to hire a coder.
On that note, may I introduce tip4commit.com? It is intended for open source projects and requires cryptocurrencies to one's regular national currencies, but I figure the code itself could be reused for BM's closed source development. This would allow people to donate to a dev fund and for those funds to be given to devs based on their commits. Currently its a simple 1% of pot per commit, but there is current development work on being able to tag commits with varying levels of importance (free, tiny, small, average, large, giant etc.) for different reward levels and other payment customizations (mostly suited for github).
