Great view into the core value of Instagram from the get go: start simple. While lacking the early days of Burbn, leading to the pivot from that product to Instagram, it was interesting to read what they took with them, as the started to utilize more and more of Facebook's infrastructure and grow the company.
Your onboarding process should fit the kind of culture you want to promote, and the kind of people you want to hire that will shine because of it. Bizzabo's process is a great example of a company that prefers to do things differently, yet with a lot of thinking of the details and the intent behind it.
Doing more with less is a state of mind. It requires a lot of creativity, but the team at StatusPage will take you through the details of how it can be done. Plenty ideas to barrow and try at your company.
This lesson is something that took me a couple of years to learn in my early days as an Engineering Manager. It's not only figuring out that failure is part of the learning process, it's also to make room for others to experiment.