I already used this, before I got HA.
And there are some things I have to workaround when using ha_script, like the sony api requests. Sony HA integrations are not that straight forward, when disconnecting multimedia devices from power :-).
Aaaand, the script is ready and working. The only thing that blocks it using with a shell_command is this 60s timeout. I think after 90s or so, the script is also done, but shell_command terminates it to early.