In Poland we use standard qwerty keyboards with Polish keyboard layout set (called Polish Programmers), you press alt+character to get the special version (like alt+s gives you ś, alt+a gives you ą and so on, the only nonintuitive one is alt+x which is ź, because alt+z is taken by ż). Combine with shift or caps lock for capital versions. No issues.
In Poland we use standard qwerty keyboards with Polish keyboard layout set (called Polish Programmers), you press alt+character to get the special version (like alt+s gives you ś, alt+a gives you ą and so on, the only nonintuitive one is alt+x which is ź, because alt+z is taken by ż). Combine with shift or caps lock for capital versions. No issues.