Yes, exactly. There are several ways to achieve this:
- Stablesats [1]
- DLCs [2]
- Stablechannels [3]
[1] 
[2]
[3] 
Stablesats :: Transact USD over Lightning without stablecoins or fiat integration
Stablesats enables Lightning users to hold, send and receive dollars without the use of stablecoins or fiat integration. It aims to solve one of th...
10101 - Decentralized finance built on Bitcoin
GitHub
GitHub - toneloc/stable-channels: p2p stable channels on the Bitcoin Lightning Network
p2p stable channels on the Bitcoin Lightning Network - toneloc/stable-channels