In general, a lawyer or real estate agent may give you a five-page contract to sign, but most of the contract is boilerplate — meaning it’s the same for everyone who gets that contract, with only a few changes.
In computer programming, boilerplate code or just boilerplate refers to sections of code that have to be included in many places with little or no alteration. It is often used when referring to languages that are considered verbose, i.e. the programmer must write a lot of code to do minimal jobs.
If you look around Github boilerplates, you will find plenty of boilerplate repositories for different programming languages or different common use cases(like a hackathon, game development, framework).
The concept of boilerplate was originated in the newspaper industry during the late 18th century.
In the software industry, most professional developers/teams created a collection of code snippets and assets that they reuse to boost development. In the case of web development, there are some basic global requirements needed for each website/application. Rather than every time rebuilding these, most developers start keeping a copy of base features & reusing it for each time.
These days, boilerplate is not limited for web development only but we can see much of boilerplate code for ML/AI as there are more growing frameworks & libraries in this area.
Neither I'm promoting nor recommending any of these boilerplates for your requirements. You should do your research in case you wants to use one. I'm just trying to give my bit to open-source community.
The wisest thing is to get a deeper understanding of your software requirements & then look around for matching framework/boilerplate/core.