What I Use
Humans are tool builders.
Software
Most things I do require a programming language, and my choice is Python. I'm using it since middle school and now it feels very familiar. But Python alone is incomplete without PyCharm, pyenv & poetry.
For my personal knowledge and project management I use Obsidian.
My startup (Magic Vision) runs on Notion and Discord, which are really effective tools to collaborate in a team.
Hardware
I do everything from a 2018 Lenovo Legion Y530. At home, my Legion is paired with a 27" 2K BenQ monitor.
My mouse is a Logitech MX Master 3s and I use Apple cable earphones.
I find it useful sketching my thoughts; to do that I have a Wacom Intuos pen tablet.