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docs/user-docs/yUSND.md

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+# yUSND
+
+![yUSNDvault](/img/yusnd-vault.png)
+
+yUSND stands for Yearn-USND, and is the primary liquid yield bearing version of USND.
+
+Deposit USND into the yUSND vault directly on the earn page here: https://app.nerite.org/earn/yusnd
+
+Hold yUSND in your wallet to earn yield from the Nerite stability pools, while Yearn optimizes and balances USND deposits across the pools to maximize yield.
+
+The yUSND vault has no lockup period, and yUSND can be redeemed for the underlying USND at any time.
+
+## yUSND Strategies & Integrations
+yUSND integrated easily in many apps because of how standardized the vault is.
+
+### PoolTogether
+Lossless Savings Lottery with PoolTogether/Cabana & yUSND: https://app.cabana.fi/vault/42161/0x46a979f0f8e24e0e85e6c3a7deeb4c5abd355ba2
+
+### Spectra
+Yield trading. Lock in fixed yield rates or trade PT/YT version of the yUSND token: https://app.spectra.finance/pools/arb:0xdbfdad05d2d280195331582516813358f41d1cc4
+
+### More coming soon.
+
+## ERC-4626 Vaults
+ERC-4626 is a vault standard which yUSND and most other yearn vaults use. It has been heavily audited and is the most popular vault standard in crypto. Learn more about the ERC here: https://erc4626.info/
+
+
+## Brand assets
+Any integration with yUSND has full permission to use the yUSND brand assets here: 
+
+https://github.com/NeriteOrg/assets/tree/main/yUSND
+