How DIN Accelerated Decentralized Infrastructure Testing with BuildBear Labs
DIN used BuildBear to create a Holesky environment for testing their decentralized infrastructure, cutting feedback loops and increasing iteration speed.
About DIN
The Decentralized Infrastructure Network
DIN (Decentralized Infrastructure Network), a web3 infrastructure provider, faced significant challenges in testing decentralized RPC services reliably across multiple stakeholders, especially during Ethereum's Holesky testnet disruption. By leveraging BuildBear Labs' testing infrastructure, DIN accelerated their development velocity, enhanced developer productivity, and ensured continuous progress ahead of critical milestones.
DIN provides a decentralized RPC-as-a-Service marketplace, enabling centralized RPC providers (e.g., Infura) to offer highly available, reliable blockchain infrastructure APIs across 14+ networks such as Linea, Blast, Swellchain, and Unichain. Integrated within the EigenLayer ecosystem, DIN serves as a crucial administrative element for node provider management, reputation tracking, and endpoint decentralization. DIN recently achieved a milestone with ephemeral testnet v0.1, collaborating with EigenLayer, AltLayer, BuildBear, and Txtx, confirming the viability and security of decentralized slashing and incentive mechanisms.
The Challenge
Testing and Analysis Across Teams
DIN required a dependable, collaborative testing environment to verify decentralized mechanisms like EigenLayer's slashing. Such environments needed to be stable, easy to share among developers and operators, and equipped for comprehensive debugging.
Recently, issues with the Pectra update to Ethereum's Holesky testnet threatened to slow down development due to a lack of finality. If BuildBear hadn't been there to support the team, both from the standpoint of our platform and from the support of our team, the DIN team would have suffered development delays at an important time close to ETH Denver.
"BuildBear being up during the Holesky holdup allowed us to continue unimpeded." - Amal, Developer at DIN
The Solution
BuildBear Provides a Collaborative Testing Environment
DIN needed a stable forked testing environment based on Ethereum's Holesky testnet, with robust debugging and collaboration capabilities. BuildBear's Sandboxes, powered by the Phoenix Engine, provided immediate, seamless setup and included critical debugging tools such as transaction explorers, gas profilers, and full transaction tracing. In DIN's multi-stakeholder environment, this allowed teams to socialize bugs across teams for effective triage and straightforward collaboration. Every piece of the debugging process is easily shareable, so finding root causes could happen async and take less time.
DIN and EigenLayer teams quickly integrated BuildBear's Sandboxes, immediately leveraging a stable forked Holesky environment. Direct, ongoing technical support from the BuildBear Labs team ensured smooth adoption and continuous operational efficiency.
The Result
Sucessful Launch of Ephemeral Testnet v0.1
By adopting BuildBear Labs' infrastructure, DIN experienced:
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Significant reduction in overall testing time, so when it came time to onboard operators, the could focus on their experience.
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Enhanced developer productivity through confidence, streamlining debugging and development workflows through shared observability of smart contract behavior.
"BuildBear and Txtx together have dramatically accelerated our development velocity. We look forward to using BuildBear's CI system and sequence diagrams to further accelerate our smart contract development." - Amal, Developer at DIN
Key Takeaways
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BuildBear Sandboxes powered by the Phoenix Engine provided reliable testing continuity even during critical network disruptions (e.g., Holesky Pectra).
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The suite of tools offered by BuildBear increases development teams' confidence in the work they're doing by providing observability into smart contract behavior.
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In multi-stakeholder scenarios, BuildBear makes the experience more social, so developers can collaborate without friction. Beyond enhancing productivity, this makes the experience more enjoyable and less error prone by allowing teams to focus on the task at hand rather than environment setup. Specifically, BuildBear Sandboxes provide:
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An explorer to see all sandbox activity and act as a collaborative nexus for sharing insights from both the explorer itself and other tools.
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A faucet to reduce to friction of using live networks by instantly providing native and ERC-20 tokens to any of the team's wallets.
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A debugger, gas profiler and tracer with support for Foundry cheatcodes. With an easily ability to share analysis from these tools, each developer can collaborate with another dev or SME for better insights.
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Future Outlook
Testing Automation
DIN will continue partnering with BuildBear Labs, leveraging our CI/CD Service for automated sandbox creation, integration testing, and smooth onboarding of additional partners in upcoming testnets. This ongoing collaboration is critical for testing DIN's functionality, namely dynamic pricing and governance frameworks, along with its future growth and scaling strategies.