How to find a freelance developer in Nepal?

The channels differ in what they let you verify. A marketplace gives you escrow and a dispute process but a thin view of the work. A personal site or repository gives you a much better view of the work and no payment protection. Local communities and referrals give you a reference from someone who worked with them, which is the strongest signal and the hardest to obtain cold.

Whichever route you take, the thing that prevents most bad outcomes is written before any code exists: what is being built, what counts as finished, who owns the code and the accounts, and what happens if either side wants to stop. Most freelance engagements that end badly were never scoped in writing, not underpriced. Ask for that document early — a developer who resists writing it is telling you something useful.