Developer shares five hard-learned lessons building a Cardano-Midnight USDM bridge app

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A developer building cross-chain USDM transfer tools between Cardano and Midnight's testnets documented five undocumented pitfalls encountered during the process. One key issue is that USDM sent from Midnight to Cardano lands at an enterprise address not monitored by the Lace wallet, making funds appear lost when they are not. VIA's block explorer also requires different transaction hash formats depending on the source chain, and defaults to Mainnet view, causing completed testnet transfers to appear nonexistent. The developer built two working applications — Tender, a browser-based transfer app, and Privoice, a private invoice contract — completing eight transfers and one deployed contract. The findings are shared as practical guidance for others building user-facing applications on the VIA cross-chain infrastructure.

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