https://matiassalles99.codes/Ruby on Rails developer and open source enthusiast sharing my thoughts and experiences on various engineering topics. 2026-07-11T05:24:21-03:00 Matias Salles https://matiassalles99.codes/ Jekyll © 2026 Matias Salles /assets/img/favicons/favicon.ico /assets/img/favicons/favicon-96x96.png 2026-07-10T14:23:41-03:00 2026-07-10T14:23:41-03:00 https://matiassalles99.codes/posts/publishing-emulator-book-on-amazon-kdp/ Matias Salles

I put the NES emulator book I built earlier this year on Amazon KDP after it sold 60+ copies on Reddit. Notes on the move and what I changed.

2026-05-18T14:23:41-03:00 2026-05-19T23:30:22-03:00 https://matiassalles99.codes/posts/slap-links-vibecoded-chrome-extension/ Matias Salles

I vibecoded SlapLinks, a Chrome extension inspired by SlapMac.

2026-05-14T14:23:41-03:00 2026-05-14T14:23:41-03:00 https://matiassalles99.codes/posts/heroku-to-digital-ocean/ Matias Salles

I moved a side project from Heroku to a $4 DigitalOcean droplet using Kamal and SQLite, and cut my monthly hosting bill from $16 to $4.

2026-05-03T14:23:41-03:00 2026-05-04T03:16:15-03:00 https://matiassalles99.codes/posts/cheap-domains-porkbun/ Matias Salles

I switched my domains from GoDaddy to Porkbun and cut my yearly bill in half. Here's how the transfer works and what to watch out for with DNS records.

2026-03-22T14:23:41-03:00 2026-03-26T15:30:25-03:00 https://matiassalles99.codes/posts/building-nes-emulator-crystal-book/ Matias Salles

I built a NES emulator in Crystal. Mario went from 0.5 FPS to 60 FPS. Then I turned the whole journey into a book. Here's what I learned.