Most Raspberry Pi models have one Ethernet port and one Wi-Fi adapter, making them the perfect device to become a Wi-Fi access point. Whether you do this because you don’t have any Wi-Fi network yet to create a separate network on your LAN or for other reasons, I’ll show you the steps to get you there.
Once the Raspberry Pi is connected to the local network with an Ethernet cable, the Wi-Fi adapter can be used to create an access point for other wireless devices. Hostapd is the service that allows enabling this feature on Raspberry Pi OS.