Syntax	Description	Examples
`"` keyword `"`	Finds the string within quotes, including spaces. Case-insensitive. (Escape quotes inside with `\"`)	`"Hackers' Pub"`
`from:` handle	Finds content written by the specified user.	`from:hongminhee` `from:hongminhee@hollo.social`
`lang:` ISO 639-1	Finds content written in the specified language.	`lang:en`
`#` tag	Finds content with the specified tag. Case-insensitive.	`#HackersPub`
condition condition	Finds content that satisfies both conditions on either side of the space (logical AND).	`"Hackers' Pub" lang:en`
condition `OR` condition	Finds content that satisfies at least one of the conditions on either side of the OR operator (logical OR).	`#HackersPub OR "Hackers' Pub" lang:en`
`(` condition `)`	Combines the operators within the parentheses first.	`(#HackersPub OR "Hackers' Pub" OR "Hackers Pub") lang:en`

About

Juan @juanjin@hackers.pub

This post introduces Juan Jin, a programmer from South Korea with expertise in C, C++, Python, C#, and TypeScript. Jin's skills extend to platforms, libraries, and frameworks such as STM32CubeMX, ESP-IDF, FreeRTOS, Zephyr RTOS, and more. The author showcases personal projects like "Black Magic," a C macro metaprogramming research endeavor, and contributions to open-source projects like "Net for Dumbass" and "zpmgr." The post also details Jin's extensive work history, including roles at Bitbus, People-i, and other companies, where he developed diverse applications ranging from agricultural smart waterstream projects to military defense systems and IoT solutions. This overview highlights Jin's broad experience and technical capabilities, making it a valuable resource for those interested in embedded systems, IoT, and software development.