Bootloader for Nintendo Switch

I want to make a external bootlader for Nintendo Switch. They prefer Trinket M0 for that but its not cheap and it has some unneeded features like power regulator. I want it as little as possible. What do you guys suggest? Can I find a cheaper alternative for that?

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I didnt say its too expensive, I say is there any cheaper and smaller alternative? Whats wrong with that?

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ahamza61:
I didnt say its too expensive, I say is there any cheaper and smaller alternative? Whats wrong with that?

What features does it need to have? How can someone recommend a board when you haven't told what it needs to do?

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