Very simple and effective, portable WiFi extender : r/raspberry_pi
RPI HiFi AMP Hat TAS5713 Amplifier Audio Module 25W Class-D Power Sound Card Expansion Board for Raspberry Pi 4 3 B+ Pi Zero Nichicon Capacitor : Amazon.fr: High-Tech
CM4 2 Go RAM Raspberry Pi module de calcul 4 RAM eMMC 8 Go 16 Go 32 Go Wifi | eBay
Raspberry Pi 4 Wi-Fi Problems? Here's the Workaround | Tom's Hardware
networking - How to build a WiFi repeater using the Raspberry Pi - Raspberry Pi Stack Exchange
Raspberry Pi3 WIFI Router Based on Linux piCore - Brezular's Blog
Create a WiFi Extender with Raspberry Pi 4 - The Engineering Projects
WiFi 6 gets 1.34 Gbps on the Raspberry Pi CM4 | Jeff Geerling
wifi - Add an external antenna to a Pi 3 - Raspberry Pi Stack Exchange