I ask this not to rain on your parade, but to probe how much of your word "hope" comes into play here.
I'm not sure a compeditor would be "less genuine" than you.
Customer service can be a differentiator, (so at least Google isn't your problem) but good customer service is expensive. AWS provides pretty good customer service.
Relying on brand is likely to hurt rather than help you - you'll be unknown whereas AWS is, well, AWS.
I get that if your target market is Open Source developers, then releasing source is a good thing. Hopefully you remain small enough to fly under the radar.