Create wifi access point
Create
nmcli connection add type wifi ifname wlan0 mode ap ssid “Raspi WiFi” con-name wifi-ap
Secure it
nmcli connection modify wifi-ap 802-11-wireless-security.key-mgmt wpa-psk nmcli connection modify wifi-ap 802-11-wireless-security.psk $wifipass
wifipass=””
Share internet
nmcli connection modify wifi-ap ipv4.method shared
(optional) prevent autoconnect on boot
#nmcli connection modify wifi-ap connection.autoconnect no
Bring it up
nmcli connection up wifi-ap