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Re:My Love Letter to Rails (and Ruby) – Or, Why RoR Isn't De... by rodrigodlu on Tuesday October 24, 2023 @07:13AM (#37997379)
I worked in one product that a "simple" re-architecture from rails 3 to rails 5+(async-as-most-as-we-can) was more than enough to handle MAU into millions and simultaneous sessions in high thousands. Enough for a big exit for the founders indeed and having an edge against other players using golang, but with double the headcount than my case.

We also got 98~100 lighthouse by using pure JS with sprinkles of stimulus after the initial rendering.

Re:My Love Letter to Rails (and Ruby) – Or, Why RoR Isn't De... by JustLurking2022 on Tuesday October 24, 2023 @08:03AM (#37997908)
Thousands of simultaneous sessions isn't all that many, if you are scaling your infra to dozens of servers. Can be handled by a single server, if code is optimized.
Re:My Love Letter to Rails (and Ruby) – Or, Why RoR Isn't De... by rodrigodlu on Tuesday October 24, 2023 @08:09AM (#37997985)
4x16gb/2x offpeak pure ec2 deployed with codedeploy that was easily paid and profitable

2x8gb elasticsearch 1x512mb redis 1xRDS mysql 16gb

low thousands/year of cloudflare enterprise

half of the budget (personnel+infra) than the next competitor in the niche I worked