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![serenaearn Avatar](https://lunarcrush.com/gi/w:24/cr:twitter::1656569560877916160.png) Serena [@serenaearn](/creator/twitter/serenaearn) on x XXX followers
Created: 2025-07-19 23:31:59 UTC

Union_build Dev Ecosystem   H1 2025 Recap

INTEROP KINGS:
- @union_build nailed 1M+ daily testnet txs + XX% Babylon bridge TVL (~$50m)
- Testnet X w/ state lenses, gas optims, dashboard: all dev-focused
- Heavy on community XP, whaleshark NFT drops, cross-chain governance

Devs get:
- Bleeding edge tools to build across L2s/Bitcoin
- Combinator for onboarding eco projects + pitch day
- Open grants, hackathons, and dashboard to max your points
- Alpha mainnet + auBTC bridge, modular upgrades

Union ain't just airdrops   it’s dev playground mode. Which feature levels up your stack? #Union #Unionbuild #UnionTestnet


XX engagements

![Engagements Line Chart](https://lunarcrush.com/gi/w:600/p:tweet::1946714668657201327/c:line.svg)

**Related Topics**
[50m](/topic/50m)
[devs](/topic/devs)
[governance](/topic/governance)
[drops](/topic/drops)
[nft](/topic/nft)
[dashboard](/topic/dashboard)
[$50m](/topic/$50m)
[tvl](/topic/tvl)

[Post Link](https://x.com/serenaearn/status/1946714668657201327)