[NwmG]

May not be exactly what your looking for but bolt VC posts some really interesting content around starting hardware companies. https://blog.bolt.io

Theres a whole series on the hardware process: https://blog.bolt.io/ideation/ https://blog.bolt.io/design/ https://blog.bolt.io/engineering/ https://blog.bolt.io/validation/

They also have a bunch of great posts on strategy and business models.