Reached 150 new subscribers in last 5 months

My last milestone was about reaching 200 subscribers on my mailing list. It was not easy and it was a long process. Since then I got 150 new people interested in the launch of my upcoming book Deployment from Scratch. The total is 350 now and I am very slowly, but steadily going after the 500.

How am I reaching new people? The same way as before. I try to publish new technical articles on my blog and share them in relevant online spaces if I think they are good enough and helpful. I am planning on publishing again a bit more on direct topics from the book which will hopefully help!