OriginX’s Custom Testnet Journey with BuildBear

OriginX is building a modular execution layer that enables developers to launch rollups with minimal overhead.

To get there, they needed an environment that mirrored their production stack, without the complexity of public testnets:

• Multi-Tool Integration: Their system involved custom clients, shared sequencers, and Devnet infra
• Poor Feedback Loops: Testing on public networks slowed iteration cycles
• Lack of Control: Debugging across multiple layers was nearly impossible with off-the-shelf testnets

The team was spending more time fighting the test environment than building the rollup itself.

With BuildBear, OriginX launched a bespoke testnet tuned for modular rollup testing:

• Custom Genesis: Built a chain that replicated their rollup architecture
• Integrated Explorer: Used BuildBear’s explorer to track multi-step transactions
• Private Infra: Spun up a network isolated from noise, tailored to their dev workflows
• Team Collaboration: Engineers accessed logs, state diffs, and forks, all in one place

They finally had a testnet that worked with them, not against them.

BuildBear helped OriginX accelerate modular rollup development:

• Simulated real-world infra with low latency and high visibility
• Debugged interactions between execution and settlement layers
• Iterated faster with a forkable, observable testnet stack

The result: faster iterations, fewer surprises, and a smoother path to Mainnet.

OriginX needed flexibility, visibility, and speed, and BuildBear delivered.

• Launch Mainnet-like testnets with custom config
• Observe and debug across modular infra layers
• Build and test rollups without compromising iteration cycles

With BuildBear, OriginX turned complex infra testing into a competitive edge.