diff --git a/bin/basicswap_prepare.py b/bin/basicswap_prepare.py
index b3b0602..201a8db 100755
--- a/bin/basicswap_prepare.py
+++ b/bin/basicswap_prepare.py
@@ -721,8 +721,6 @@ def prepareDataDir(coin, settings, chain, particl_mnemonic, extra_opts={}):
             fp.write('staking=0\n')
             if PART_RPC_USER != '':
                 fp.write('rpcauth={}:{}${}\n'.format(PART_RPC_USER, salt, password_to_hmac(salt, PART_RPC_PWD)))
-            if particl_mnemonic == 'auto':
-                fp.write('createdefaultmasterkey=1')
         elif coin == 'litecoin':
             fp.write('prune=4000\n')
             fp.write('pid=litecoind.pid\n')
@@ -1100,6 +1098,7 @@ def main():
     with_coins = {'particl', }
     add_coin = ''
     disable_coin = ''
+    coins_changed = False
     htmlhost = '127.0.0.1'
     wshost = '127.0.0.1'
     xmr_restore_height = DEFAULT_XMR_RESTORE_HEIGHT
@@ -1185,12 +1184,14 @@ def main():
                     if coin not in known_coins:
                         exitWithError('Unknown coin {}'.format(coin))
                     with_coins.add(coin)
+                coins_changed = True
                 continue
             if name == 'withoutcoin' or name == 'withoutcoins':
                 for coin in [s.lower() for s in s[1].split(',')]:
                     if coin not in known_coins:
                         exitWithError('Unknown coin {}'.format(coin))
                     with_coins.discard(coin)
+                coins_changed = True
                 continue
             if name == 'addcoin':
                 add_coin = s[1].lower()
@@ -1396,6 +1397,9 @@ def main():
 
         init_coins = settings['chainclients'].keys()
         logger.info('Active coins: %s', ', '.join(init_coins))
+        if coins_changed:
+            init_coins = with_coins
+            logger.info('Initialising coins: %s', ', '.join(init_coins))
         initialise_wallets(particl_wallet_mnemonic, init_coins, data_dir, settings, chain, use_tor_proxy)
 
         print('Done.')
@@ -1456,8 +1460,9 @@ def main():
         logger.info('Adding coin: %s', add_coin)
         settings = load_config(config_path)
 
-        # Ensure Particl wallet is unencrypted or correct password is supplied
-        test_particl_encryption(data_dir, settings, chain, use_tor_proxy)
+        if particl_wallet_mnemonic != 'none':
+            # Ensure Particl wallet is unencrypted or correct password is supplied
+            test_particl_encryption(data_dir, settings, chain, use_tor_proxy)
 
         if add_coin in settings['chainclients']:
             coin_settings = settings['chainclients'][add_coin]
@@ -1480,7 +1485,7 @@ def main():
         if not prepare_bin_only:
             prepareDataDir(add_coin, settings, chain, particl_wallet_mnemonic, extra_opts)
 
-            if particl_wallet_mnemonic not in ('none', 'auto'):
+            if particl_wallet_mnemonic != 'none':
                 initialise_wallets(None, {add_coin, }, data_dir, settings, chain, use_tor_proxy)
 
             with open(config_path, 'w') as fp:
@@ -1543,7 +1548,7 @@ def main():
     with open(config_path, 'w') as fp:
         json.dump(settings, fp, indent=4)
 
-    if particl_wallet_mnemonic in ('none', 'auto'):
+    if particl_wallet_mnemonic == 'none':
         logger.info('Done.')
         return 0
 
diff --git a/docker/production/notes.md b/docker/production/notes.md
index 580bd27..5cb7684 100644
--- a/docker/production/notes.md
+++ b/docker/production/notes.md
@@ -106,3 +106,45 @@ Start BasicSwap:
     docker-compose up
 
 
+## Update code
+
+    docker-compose stop
+
+    pushd .
+    cd ../../
+    git pull
+    popd
+
+    docker-compose build monero_daemon
+    docker-compose build
+
+    docker-compose build --no-cache swapclient
+    docker-compose up
+
+
+## Add a coin
+
+    cat compose-fragments/1_monero-wallet.yml >> docker-compose.yml
+    cat compose-fragments/1_monero-wallet.yml >> docker-compose-prepare.yml
+
+    # Add the Monero daemon if required (should not go in docker-compose-prepare.yml)
+    cat compose-fragments/8_monero-daemon.yml >> docker-compose.yml
+
+
+
+    export ADD_COIN=monero
+    docker-compose -f docker-compose-prepare.yml run --rm swapprepare \
+        basicswap-prepare --nocores --addcoin=${ADD_COIN} --htmlhost="0.0.0.0" --particl_mnemonic=none
+
+    docker-compose build monero_daemon
+    docker-compose build
+
+    docker-compose -f docker-compose-prepare.yml up -d --scale swapprepare=0
+
+    docker-compose -f docker-compose-prepare.yml run -e WALLET_ENCRYPTION_PWD=walletpass \
+        --rm swapprepare \
+        basicswap-prepare --initwalletsonly --withoutcoin=particl --withcoin=monero
+
+    docker-compose -f docker-compose-prepare.yml stop
+
+    docker-compose up