Create core descriptor wallet

gistfile1.txt

# install bitcoind via your favorite method

# start regtest bitcoind
mkdir -p /tmp/regtest1/bitcoind
bitcoind -datadir=/tmp/regtest1/bitcoind -regtest -server -fallbackfee=0.0002 -rpcallowip=0.0.0.0/0 -rpcbind=0.0.0.0 -blockfilterindex=1 -peerblockfilters=1 -daemon

# cookie file location: /tmp/regtest1/bitcoind/regtest/.cookie

# create test bitcoind wallet
bitcoin-cli -datadir=/tmp/regtest1/bitcoind -regtest -named createwallet wallet_name="regtest1" disable_private_keys=true blank=true

# set descriptor env
export DESCRIPTOR="wpkh(tpubD6NzVbkrYhZ4WWGhiCNyq7EUNpoFdcVrxB4SqRUv55oSXHPAt47E5Et1xYM8S5ZqtwPuPZ5j2s1pFALLGg9uK5emMbKqdi8r2B2SRx9oQSk/*)#v7tylpae"

# import test descriptor
bitcoin-cli -rpcwallet="regtest1" -datadir=/tmp/regtest1/bitcoind -regtest importdescriptors '[{ "desc":"wpkh(tpubD6NzVbkrYhZ4WWGhiCNyq7EUNpoFdcVrxB4SqRUv55oSXHPAt47E5Et1xYM8S5ZqtwPuPZ5j2s1pFALLGg9uK5emMbKqdi8r2B2SRx9oQSk/*)#v7tylpae", "active":true, "timestamp":"now"}]'
# get test descriptor wallet info
bitcoin-cli -rpcwallet="regtest1" -datadir=/tmp/regtest1/bitcoind -regtest getwalletinfo

# get new address
bitcoin-cli -rpcwallet="regtest1" -datadir=/tmp/regtest1/bitcoind -regtest getnewaddress