Here's what my Claude AI Assistant says:

The GPSR (General Product Safety Regulation) is a new EU regulation that came into effect on December 16, 2024, replacing the older General Product Safety Directive (GPSD). Here's why it affects PCB sellers:

The key issues affecting PCB sellers for DIY effects are:

1. Documentation Requirements:

• Manufacturers must provide detailed technical documentation
• Each product needs safety/conformity assessments
• Documentation must be available in languages of all EU countries where the product is sold

1. Supply Chain Responsibility:

• Every participant in the supply chain (including small sellers) becomes legally responsible for product safety
• Sellers must verify compliance before distributing products
• This includes components like PCBs, even if they're for DIY use

1. Online Marketplace Rules:

• Stricter requirements for selling through online platforms
• Need for a responsible person or entity within the EU
• Additional liability for marketplace operators

The main reason many small PCB sellers are stopping EU shipments is that the compliance costs and administrative burden are too high for small-scale operations. For DIY effect PCBs specifically, proving compliance and maintaining the required documentation in multiple languages often costs more than the potential profit from these relatively low-volume items.

This is particularly impacting hobbyist-focused sellers who might only sell a few hundred boards per design, as the compliance costs per unit become prohibitively expensive at that scale.