I use Obsidian extensively to organize my life. A big thank from me to the entire team! The only thing I wish it had out of the box was web clipping. I know there are few third party extensions but I havn't found one that works seamlessly
For me, it's Postgres all the way. I use MS SQL Server at work and Postgres for my personal projects and I was always amazed by its maturity and feature parity with commercial databases
Despite expressions of a lot of mimetic discontent online about how bad K&R is, the second edition (1988) remains an excellent example of technical writing. It's a good intro to (ANSI) C. It's not a good guide to e.g. build systems or other industry-standard tools, for the reasons described at the beginning of this article—but then again it doesn't pretend to be. (The name of the book is "The C Programming Language", after all.)