Went in and out for 2 times already and they just wanted to see the printed visa. You should still fit in the requirements though if they ask more questions.
I uploaded my official business registration sheet and an employment contract from my business to myself. Wrote a letter to the embassy to explain that this is my business, where my clients are located and that I can work online.
Got invited for an interview to the embassy in Vientiane where there ask some more questions and want to check my online banking and scrolled to my last salary.
All in all pretty smooth if you fit the requirements.
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