Build netmaker_0.9.4-1_mipsel_24kc.ipk too big

Hello,

I built netmaker_0.9.4-1_mipsel_24kc.ipk for my router (target platform ramips/mt7621).
However, the file size ~8MB, and this is by far too big.

Any suggestions how to reduze package size of netmaker?

I assume this package is for the server, however I only need client software.
