Buying a lump-sum of crypto i plan to hold 10+ years

Hello! I am new to this community. As the title states, I am planning to put $50k of crypto into a hard-wallet I just purchased.

My plan is to never look at it again for at least a decade.

Initially, I wanted to just put all $50k into bitcoin, but now Im wondering if I should allocate a percentage to some other crypto such as ethereum or solana. My current thought is maybe 90% BTC and 10% ETH.

Are there any recommendations for an ideal % breakdown of this $50k? Should I go all in on BTC? What percentage should I put into other coins and which ones? Thanks!