The discussion revolves around the decision to move away from Obsidian in favor of building a personal knowledge management system (PKMS) tailored to specific needs. Users express concerns regarding Obsidian's limitations, particularly in syncing notes across devices without incurring additional costs. Some users highlight their technical solutions, such as using SyncThing for synchronization and creating custom PKMS applications using programming languages like Zig. There is debate about the value of proprietary tools like Obsidian compared to open-source alternatives, with suggestions of potential long-term frustrations due to platform dependency. Furthermore, there is an emphasis on security measures for self-hosted solutions, with advice on network configurations to enhance privacy. While some users advocate for the flexibility of using markdown and open standards, others appreciate the convenience that Obsidian's integrations provide.