Work with a keyboard customization suite. Change the positions of keys and save them as a text file. Alter such stand layouts as AR, BG, BR, BR_abnt2, CZ, EL, EO, ES, EU, HE, IN, IT, JP, KK, NB, PT, SE, SK, TR, UK, UR_crulp, UR_nla, US, BG, BR, DE_AdNW, DE_neo2, EO, FR, FR_bépo, TR, UK, US, US_BR, US_ES, US_SE, etc.
Downloading Klavaro 3.03 for Mac from the developer's website was possible when we last checked. We cannot confirm if there is a free download of this app available. Klavaro for Mac lies within Productivity Tools, more precisely Office Tools. This free Mac app was originally produced by Felipe Castro. We recommend checking the downloaded files with any free antivirus.
From the developer:
Growing frustrated with other options that rely mostly on a few specific keyboards, Klavaro is libre software that intends to be keyboard and language independent, saving memory, time and money. Configure position of keys and save as a text-file. If your keyboard is missing, you can create it. Let us know about any new layouts you create.
You may want to check out more Mac applications, such as PitStop Extreme, FileOpenInstaller or Blurb Tally, which might be related to Klavaro.