from dataclasses import dataclass
from typing import Tuple


class Meta(type):
    def __new__(cls, name, bases, attrs):
        new_cls = super().__new__(cls, name, bases, attrs)
        return dataclass(unsafe_hash=True, frozen=True)(new_cls)

class Bio(metaclass=Meta):
    name        : str = 'Sebastian Daniel Nowak'
    designation : str = 'Software Engineer'
    base        : str = 'Warsaw, Poland'
    hobbies     : str = 'Road cycling, climbing, photography'

class Stack(metaclass=Meta):
    languages   : Tuple[str, ...] = ('JavaScript', 'Python', 'Java', 'C++')
    databases   : Tuple[str, ...] = ('MySQL', 'PostgreSQL', 'MongoDB', 'Redis')
    frameworks  : Tuple[str, ...] = ('React', 'Vue.js')
    misc        : Tuple[str, ...] = ('Bazel', 'Docker')