Taiwan’s Ministry of Education has released software for Windows and Linux systems that uses Hakka romanization for the inputting of Chinese characters.

This appears to be aimed mainly at those who wish to input Hanzi used primarily in writing Hakka, such as that shown here.

• Windows version
• Linux version
• installation and user manual (Ānzhuāng shǐyòng shǒucè)

See also Taiwanese romanization used for Hanzi input method.

sources:

• Diànnǎo shūrù Kèjiāyǔ yòngzì miǎn fánnǎo! Jiàoyùbù miǎnfèi tígōng Kèjiāyǔ pīnyīn shūrùfǎ (電腦輸入客家語用字免煩惱！教育部免費提供客家語拼音輸入法); Ministry of Education, Taiwan; September 2, 2011
• Táiwān Kèjiā Yǔ pīnyīn shūrùfǎ (臺灣客家語拼音輸入法); Ministry of Education, Taiwan; September 2, 2011