Let me introduce you to the pre-revolutionary keyboard, which contains in addition to the usual letters of the modern Russian alphabet four more that were excluded by the reform of 1918: yat (ѣ), fitu (ѳ), i-decimal (i) and, in fact, izhitsa (ѵ) .

It supports capitalization, switching to other keyboards.

The letters 'b', 'e', ​​'f' and 'and' allow you to print er; yat, yo; fitu; i-decimal and Izhitsa, respectively, by quick double pressing or long holding.