What does it mean to build a cost-free feature in the software, and are cost-free features even possible? Today we talk with Avdi Grimm. Avdi is a software developer with more than twenty years of experience. During his career, Avdi worked on everything from aerospace embedded systems to enterprise web applications. He is the author of Confident Ruby: 32 Patterns for Joyful Coding and a recipient of the Ruby Hero Award. Currently, he spends his time helping developers deepen their coding practice at Graceful.Dev. He tells us about practices that increase software maintenance costs and how to avoid them.  When you finish listening to the episode, connect with Avdi on Twitter or LinkedIn, visit his website, and check out his training courses at Graceful.Dev.  Mentioned in this episode: Avdi on Twitter at https://twitter.com/avdi  Avdi on LinkedIn at https://www.linkedin.com/in/avdigrimm/  Avdi’s training courses at https://graceful.dev Avdi’s website at https://avdi.codes  Avdi Grimm, Confident Ruby: 32 Patterns for Joyful Coding at https://www.amazon.com/Confident-Ruby-Patterns-Joyful-Coding-ebook/dp/B00ETE0D2S/?_encoding=UTF8&pd_rd_w=Vvn53&content-id=amzn1.sym.22f5776b-4878-4918-9222-7bb79ff649f4&pf_rd_p=22f5776b-4878-4918-9222-7bb79ff649f4&pf_rd_r=135-0405864-9131715&pd_rd_wg=PIKbJ&pd_rd_r=01acffe0-cfc0-46a5-b78a-9679fb0ebfcb&ref_=aufs_ap_sc_dsk