RocketLaunchCountdown is a python and HTML system to operate a launch countdown and go/nogo indicator. The go/nogo indicator is operated either by a spreadsheet, using a sharelink inserted in the settings windows. Or there are buttons in the app that can manage it as well. Which mode is used is dictated by a simple radio button in the settings window. #Latest release: [RocketLaunchCountdown 0.7.0](https://github.com/HamsterSpaceNerd3000/RocketLaunchCountdown/releases/tag/v0.7.0-alpha) Features Added: Added ability to change clock once in T+.\ Added major concerns display.\ #OBS INSTRUCTIONS\ For setting up the HTML sources to use in OBS, or similiar softwares. Follow the below steps:\ 1. Create a browser source\ 2. Select "Local file"\ 3. Select html file\ 4. Check both "Shutdown source when not visible" and "Refresh browser when scene becomes active"\ 5. Install the extension "xObsBrowserAutoRefresh"\ - Download from https://obsproject.com/forum/resources/xobsbrowserautorefresh-timed-automatic-browser-source-refreshing.1677 \ - Set auto refresh times to whatever you desire.\ - NOTE: The faster the refresh time the smaller the chance is of the cache crashing\ [!CAUTION] This plugin does not currently have a version for Mac. #INSTALL INSTRUCTIONS\ Install is simple, download the installer, run it, and wham bam dans the man, you got a countdown manager!