there's a network fee that is deducted from all outgoing transactions from the wallet/safe
See:
For test, the price is very cheap, starts at $2 per year, and it includes a free transaction to send, so $2 is the minimum cost for a tester.
The network fee apparently only applies to the wallet transactions, not to the safe.
Anyway, I'm having trouble getting $10 worth of bitcoins out of the Safe. I can approve the transaction with the app, but I can't for the life of me get the PSBT to sign on Bitcoin Core so that I can give it the "final approval".
# The PSBT I'm given to sign:
cHNidP8BAG0CAAAAAUFu84YkNsGPV2cIqxFcO59PXJ8pJY9TMw90ew6qXp+VAAAAAAD/////AkCcAAAAAAAAFgAUH8WFFsDMwDYR8WzeafSpjeMzGXUAAAAAAAAAABJqEGraR8OsQUhlhYdcPQRibgMAAAAAAAEBK0CcAAAAAAAAIgAgaN/B/zX5booLeWET8OQDmgXWR24Fx1wvU4fIw7mWekQBAwSBAAAAAQV4IQLsNyxLbWpvwJZOB91IRIvISSFGn7/cTFItqQ86a5VP6ax8IQPWQXejk5icX/nIYD30IeKJDQORPx4eXnlItj9+E2pX0ayTfIKSYyEC2E82kxxhOPGCWknCn1xNmvlSTKeV4TO4z8ZaAazXfJqtArABspJok1KHAAAA
# I have the following address and public key in the private key wallet:
02ec372c4b6d6a6fc0964e07dd48448bc84921469fbfdc4c522da90f3a6b954fe9
16THpFJrhKtiWKtZGZ6BsKCJpeR5Bvpuim
# The script imported into the script wallet is:
wsh(thresh(2,pk(02ec372c4b6d6a6fc0964e07dd48448bc84921469fbfdc4c522da90f3a6b954fe9),s:pk(03d64177a393989c5ff9c8603df421e2890d03913f1e1e5e7948b63f7e136a57d1),sj:and_v(v:pk(02d84f36931c6138f1825a49c29f5c4d9af9524ca795e133b8cfc65a01acd77c9a),n:older(432))))#pdtn7kxw
The first key is my public key, the second key I assume belongs to my Mixin Wallet and the third is probably owned by the network, so it seems that the timelock will not help me in any case.