Format and write NTFS drives unter macOS is no problem.
Review: Fritz Repeater 600 for Mesh WLAN tested
The smallest Fritz Repeater already solves the biggest WLAN issues.
FritzBox 7490 in 2022: Still usable or too old?
The 7490 is old but still does a job. You should only pay attention to the price when buying used.
KRACK: Make WLAN more secure for smart home devices
Make your WLAN a bit safer if you have old devices in it.
MacBook WLAN Mesh slow: problem connecting to the best access point
MacBook problems with WLAN-Netzwerk-Roaming 802.11k, 802.11r and 802.11v.
HomeKit camera: save energy and extend runtime
The runtime of a battery-powered HomeKit camera can be optimized somewhat.
HomeKit camera ignores activity zone in Secure Video
A HomeKit camera ignoring activity zones can be forced to at least ignore certain movements.
New FritzBox 4060 without modem but with DECT base and mesh WLAN
A new FritzBox without modem.
Flame: Bonjour ZeroConf network services overview
Check which services are advertised in your network.