My idea is that if it gets to $ 1 Million or so or whatever amount. Sell some to get real estate to own property that will also apprciate in value and give rental income? Or maybe put some of that into companies on the stock market that give 5-9% return per year as passive income and the rest of the btc stash can increase.
What is your idea?
In my opinion the best and quite reliable way to earn passive income still is stock market. Purchasing stocks you can earn dividends as well as (hopefully) see price rise. You can already invest into stock market using your Bitcoins on platforms such as 1broker and others. I don't know if such companies are legit though...