IonFire v1.9

This one of the software packages that controls the Merlin/Merlock firing system. It's from a 3rd party Lumatech. You can also user the Merlin firing system software from Merlin as well. They have some cool features like the Backup Fire to shoot invidual cues while your script is firing. They also have GPS time sync and the ability to start the show at a specific time. (Which is nice as you could have multiple systems synced and starting at the same time.)

This version (I believe is the last version) came out in 2014.

Here's the screen you see when checking the module and cue status:

Here's an optional method to schedule the show to start at a specific time. You could have your PCs clock synced with another or using the GPS features to have multiple firing systems start at the same time.

Here's the backup fire screen. You can assign unused cues as backup cues to be manually fired during the show (In case something shoots faster than you thought, you can use this manually fire some defined cues to avoid dark sky).