ArchiSteamFarm in local?

https://github.com/jshackles/idle_master/issues/40#issuecomment-67688388
This is close to what I remember. Basically just don't play VAC-Secured games.
And even that's just a risk but I couldn't find anything about actual bans, just rumors.
Been a long time since I've decided between ASF and Idle master (extended)

I've gone with ASF as it's the run it and forget about it solution. The config/setup might take a bit longer, but BECAUSE you can't play other games at the same time it's seems to be the 'safer' solution.

https://github.com/JustArchiNET/ArchiSteamFarm/wiki/FAQ#can-i-get-vac-ban-for-using-this
When idling it pretends to be a separate steam client instead of using the one running normally on your PC. That's why it shows "another computer". This also allows you to select "play on this PC" which in turn stops the idler until you stop playing again. After a few minutes of you not playing it should log back in and start idling again. (Since I don't have a bunch of games to idle for anymore I don't know how well this still works but it used to work very nicely)
This just made it safer in my eyes as I don't need to worry about it. I used to have it in the autostart of my PC as it doesn't interfere with anything until I had idled all the games at the beginning. I stopped doing so but theoretically you could keep it there indefinitely and optionally enable ShutdownOnFarmingFinished if you only want it to run when there's something to idle.

(opinion) There's no hurry to idle cards, so choosing the comfortable/safer solution instead of idling minimally faster isn't worth it :)
ASF does a really good job in the sense of minimizing required idle time in a reasonable amount.
if anything one can try setting MarketableDescending (I had the feeling there used to be a price setting, but maybe I'm just imagining that)

https://github.com/JustArchiNET/ArchiSteamFarm/wiki/Performance

That's one of its functions, you can also remove achievements, but it also idles for cards. There's two programs. One gives you a list of games, but you can also add the app ID for games that have no achievements, then you open as many games as you want to run at once.