@gcampax Sentence will have the capability of exporting documents to a selection of file types (PDF, HTML, and so on), so we’re not expecting everybody and their dog to handle markdown. For things with specific formatting requirements, we could e.g. have a way to change the global styling of the document. Invoices, contracts and similar corporate stuff is probably best suited for specialized software anyways (maybe word processors *is* that specialized software?)
@bragefuglseth well, part of the popularity of word processing is that to some extent everyone has to deal with that stuff... eg. small businesses, freelancers, landlords need to make contracts and can't afford specialized software.
Ultimately, who would be the target user of such app?
And it's not about the export format, it's about the complexity of formatting and the internal representation. Markdown doesn't have alignment or margins, so even a letter can't be formatted correctly...
@gcampax @bragefuglseth Maybe frontmatter header could fill the base formatting needs as the metadata of the underlying markdown format? Not to go wild with customization, but for basic formatting needs like, document type and margin.