In this problem, you're starting a business, and you can consider that business as a bet, out of which you hope to gain a job, income, investment money from your equity, reputation, experience, and so on, all of which can be abstracted. Alternatively, you can look purely at the equity vs. salary trade-off in the context of Kelly, which as I explained above is deeply flawed. It's not a great scenario for such calculations, but they can still provide insightful context.