A Matrix server with a nice web based client, hosted on premise. People are then free to choose the mobile or desktop apps they want.

Christianity in India is a super small minority, and a large number of Christians are descendants of people from marginalized communities, who converted to escape persecution by ‘upper caste’ Hindus.

Regardless of whether one agrees with the ideas of Christianity is irrelevant here. This is an attack by a militant offshoot of a Hindu-supremacist political party, which has been in power for two terms now. Very 1930s Germany vibes here.

Is there a specific reason your translations are in json files, and not using a system such as gettext? IMO those .po files are much easier to translate for non-tech people, especially with many third party apps available for editing them. There are libraries available for many languages, so you don’t have to do anything manually in most cases.