Simple Plan using website.

Plan can be various on your status and will.

There exists Programming Languages, Open Sources and others. This is narrowed suggestion.

Exploring Front-end (FE) Part

Markup first recommended. Then Front-end, React, Vue.js can be done at the same time.

Exploring Back-end Part

There are many server-side opensources, like Ktor (Kotlin), Django (Python), FastAPI (Python), Spring Framework (Java, Kotlin). Server has its size of traffic and processing amount per second. Choose and study what your needs.

NameProcessing per secondAvailable size of total period trafficComplexity of development
Spring Framework