Well nobody said OnePlus ever had the most impeccable timing. After announcing its OxygenOS was still floundering in certification purgatory, OnePlus on Saturday said the company’s first operating system is ready and rearing to go. You can download Oxygen at the source link below—instructions for flashing the OS are here.

OnePlus calls OxygenOS a “pure Android experience” that was specifically built and optimized for the OnePlus One; it’s based on Android 5.0.2, and it pretty much looks exactly like Google’s OS without the flimflam of a heavy skin from other OEMs.

“In this environment where everyone is fighting to standout with custom ROMs, we think it’s important to go back to basics,” OnePlus wrote. “We place things like performance and battery life over gimmicks and bloated features”

As for the features that have been added, OnePlus says they’re subtle and important, rather than being added for the sake of differentiation. The company made a video demonstrating some of Oxygen’s more important additions, and they are indeed subtle; there are several gestures, customization options and the ability to re-organize quick settings. It doesn’t look all that different from what OnePlus One users are already used to using.

While this is all well and good, OnePlus obviously doesn’t feel like its software is completely finished, because it’s encouraging users to download an app where they can provide feedback. So if you have any major suggestions, OnePlus is open to hearing them. The more input you provide, the better OxygenOS can become.

“We want to emphasize that we built this initial version so that you guys could begin taking a direct role in the future of Oxygen,” the company explained.

We’ll definitely be giving Oxygen a thorough examination when we return to work on Monday. It looks great, but how does it perform? The Oxygen team is comprised of some big-time software engineers, so we’re expecting great things. I can’t wait to see how it runs on the company’s device.

But choose wisely, because CM12 is also expected to come out in the next few days.