I feel like when you don't use a framework, you actually end up creating your own framework. And while it is of a great engineering challenge to do so, and quite fun to think the system through, it uses much time out of the main aim of the project and you then have to train others on it, and maintain it.
In the meantime relying on an existing framework that fits your needs (and I'm not talking about some obscure ones with only 10 commits by 1 maintainer), you can probably limit the time spent implementing and debugging "basic" stuff that have already been done, integrating components that don't have great connectors yet, ...
In the meantime relying on an existing framework that fits your needs (and I'm not talking about some obscure ones with only 10 commits by 1 maintainer), you can probably limit the time spent implementing and debugging "basic" stuff that have already been done, integrating components that don't have great connectors yet, ...