I was in such a business decades back as a consultant, migrating clients from incredibly expensive mainframe systems to much more affordable alternatives, and I found out the path is fraught with perils. I was an independent consultant doing this sort of thing to get companies out of software contracts that would be around $10 million per annum in today's bucks. The vendor who was losing the clients had revenue approaching $billion/annum in today's bucks, ie a few thousands of times my revenue. I got a letter from their lawyers, an ultra-aggressive firm that had been written up in the NY Times for being so efficient at winning ultra-aggressive lawsuits. I took it to my lawyer, the best I could afford, and he negotiated a total surrender, which meant perhaps half of my potential clients were now off-limits. I did pretty well with the other half for around 10 more years, but the vendors whom I was helping by guiding their new customers through the inexplicable aspects of the replacement software, came to want my revenue and to prefer that their customers not be too well informed about what they were getting into, so they started putting terms into their software licenses that required new customers to fence me out. Game over.
I went back to work as a developer for a vendor earning huge profits in a different vertical market which they dominated. Their lawyers were far more strategically important than their development team. The amount of revenue they derived from capturing customers was audaciously incredible for a firm operating in so-called free-market economies, even though they were always up to their elbows in legal battles and skirmishes on multiple fronts over who owned what and who was allowed to use which licensed API's for what functions.
I went back to work as a developer for a vendor earning huge profits in a different vertical market which they dominated. Their lawyers were far more strategically important than their development team. The amount of revenue they derived from capturing customers was audaciously incredible for a firm operating in so-called free-market economies, even though they were always up to their elbows in legal battles and skirmishes on multiple fronts over who owned what and who was allowed to use which licensed API's for what functions.