Block Porn on your Computer?

Hi

Does anyone know a good blocking software or anything else?

K9 webprotection is gone now(you could throw away the key), it was good, is there anyone with skill that would create something similar in this community, that would be cool.

I dont use accountability software- not for me.

Porn. It is not a big problem for me these days, however it does
take a few hours of my month. Where i could create things, learn new stuff


thanks