As someone who introduced our org to a SaaS feature flag tool, we did it cause the cost of building out and maintaining the system in house would have been too

As someone who introduced our org to a SaaS feature flag tool, we did it cause the cost of building out and maintaining the system in house would have been too costly. In addition we needed both FE and BE flags (multi language support). In addition, I needed to transform the culture fast, and not wait around for people to implement a custom library for internal use. Having said that, I have built in house flag implementations or used OSS projects and would much prefer those to using a third party.