CCing redis maintainer as there's probably a need for Redis module naming policy (I chose redis-modulename as binary package name).
Please also note that there's no standard module directory, at least upstream doesn't define one AFAICT so I chose /usr/lib/redis/ but maybe /usr/lib/redis/modules/ is a better idea. There's also no mechanism to autoload installed module that maintainer or system admin can use other than editing /etc/redis/redis.conf (and add "loadmodule /usr/lib/redis/redisearch.so" there) so support for /etc/redis/conf.d/ or autoloading modules from given dir at startup would be great (can we request that upstream?)