I feel like there could be incredible value in the one monolith server approach for a lot of businesses. I found I was getting 6-8k requests a second when returning a random number from Go http endpoint and the same with rendering a simple template on a small VPS. I wonder how far you could push it with storing sessions in memory and using sqlite for data and caching while possible. The largest VPS on vultr costs $640 a month with 24CPU and 96GB of ram. the cache locality advantages and goroutine efficiency seem really fun to test