One can reproduce it with regtest and simple bash script.
Create a wallet and load it with some coins. Than
for i in {1..100}; do
cargo run --bin space-cli -- --chain regtest open @s$i
if ((i % 10 == 0)); then
bitcoin-cli -regtest -rpcuser=test -rpcpassword=test generatetoaddress 1 bcrt1pert5ccxn8e54r8srspwnsxpm0x9uuc7eykmqrxzevd7r9e674amsljtwnp
fi
done