kadena-io/kadena-evm-sandbox
Feb 2025 – Oct 2025
5 Months active
Languages Used
DockerfileHCLJSONJavaScriptMarkdownShellTOMLYAML
Technical Skills
BlockchainBlockchain DevelopmentCI/CDCommand Line InterfaceConfiguration ManagementDevOps
Lars Kuhtz
PROFILE
Lars Kuhtz
Lars developed and maintained the kadena-io/kadena-evm-sandbox repository, delivering a robust devnet environment for EVM and Pact chain testing. Over five months, he engineered dynamic Docker Compose configurations, integrated debugging and monitoring toolkits, and automated CI/CD pipelines to streamline deployment and onboarding. Using Python, Shell scripting, and Docker, Lars improved network reliability, secrets management, and API accessibility, enabling reproducible multi-project setups and deterministic mining. He addressed compatibility issues, expanded EVM API support, and implemented state proof retrieval via JSON RPC, enhancing auditability and cross-client workflows. His work demonstrated depth in backend, blockchain, and infrastructure automation, solving complex integration challenges.
Overall Statistics
Feature vs Bugs
62%Features
Repository Contributions
59Total
Bugs
11
Commits
59
Features
18
Lines of code
11,533
Activity Months5
Your Network
10 peopleSame Organization
@kadena.io1
Work History
October 2025
2 Commits • 1 Features
Oct 1, 2025October 2025: UX enhancements for Devnet tooling and a bug fix in EvM provider detection in kadena-evm-sandbox. Delivered enhanced help for Network Devnet Commands (new usage function in state.sh, clearer output, guidance). Fixed EvM provider type detection in network status (>19 and <25). Impact: faster debugging, more reliable status reporting, and improved developer productivity.
2 Commits • 1 Features
Oct 1, 2025October 2025: UX enhancements for Devnet tooling and a bug fix in EvM provider detection in kadena-evm-sandbox. Delivered enhanced help for Network Devnet Commands (new usage function in state.sh, clearer output, guidance). Fixed EvM provider type detection in network status (>19 and <25). Impact: faster debugging, more reliable status reporting, and improved developer productivity.
October 2025
August 2025
1 Commits • 1 Features
Aug 1, 2025August 2025 — Kadena EVM sandbox: Delivered a targeted feature to support state proofs by enabling eth_getProof in JSON RPC for the last 1024 blocks. Implemented by configuring the EVM service to include state proof data, enabling retrieval of state proofs for blockchain interactions. Major bugs fixed: None reported. Overall impact: improves security, auditability, and interoperability for proof-based workflows; enhances reliability of cross-client interactions with the Kadena EVM sandbox. Technologies demonstrated: JSON RPC, EVM state proof integration, and blockchain proof workflows.
August 2025
1 Commits • 1 Features
Aug 1, 2025August 2025 — Kadena EVM sandbox: Delivered a targeted feature to support state proofs by enabling eth_getProof in JSON RPC for the last 1024 blocks. Implemented by configuring the EVM service to include state proof data, enabling retrieval of state proofs for blockchain interactions. Major bugs fixed: None reported. Overall impact: improves security, auditability, and interoperability for proof-based workflows; enhances reliability of cross-client interactions with the Kadena EVM sandbox. Technologies demonstrated: JSON RPC, EVM state proof integration, and blockchain proof workflows.
June 2025
30 Commits • 10 Features
Jun 1, 2025June 2025 monthly summary for kadena-io/kadena-evm-sandbox: Focused on hardening devnet reliability, expanding development capabilities, and refining deployment hygiene. Delivered a set of feature enhancements across the devnet tooling, updated core images, and strengthened secrets handling, while triaging and fixing critical bugs to improve stability and performance. The work enabled broader EVM API access in devnet and cleaner, more predictable packaging for downstream teams.
30 Commits • 10 Features
Jun 1, 2025June 2025 monthly summary for kadena-io/kadena-evm-sandbox: Focused on hardening devnet reliability, expanding development capabilities, and refining deployment hygiene. Delivered a set of feature enhancements across the devnet tooling, updated core images, and strengthened secrets handling, while triaging and fixing critical bugs to improve stability and performance. The work enabled broader EVM API access in devnet and cleaner, more predictable packaging for downstream teams.
June 2025
May 2025
20 Commits • 3 Features
May 1, 2025May 2025 monthly summary for kadena-evm-sandbox: Delivered a scalable devnet overhaul with multi-project support, Pact chain integration, and a robust debugging toolkit, driving reliability, configurability, and faster issue reproduction across networks.
May 2025
20 Commits • 3 Features
May 1, 2025May 2025 monthly summary for kadena-evm-sandbox: Delivered a scalable devnet overhaul with multi-project support, Pact chain integration, and a robust debugging toolkit, driving reliability, configurability, and faster issue reproduction across networks.
February 2025
6 Commits • 3 Features
Feb 1, 2025February 2025: Delivered core Kadena EVM Sandbox capabilities, established automated CI/CD for devnet images, improved network setup UX and reliability, and fixed genesis compatibility with the latest chainweb-node image. These efforts enhance testing fidelity, reduce provisioning time, and ensure compatibility across environments, accelerating EVM support validation and integration efforts.
6 Commits • 3 Features
Feb 1, 2025February 2025: Delivered core Kadena EVM Sandbox capabilities, established automated CI/CD for devnet images, improved network setup UX and reliability, and fixed genesis compatibility with the latest chainweb-node image. These efforts enhance testing fidelity, reduce provisioning time, and ensure compatibility across environments, accelerating EVM support validation and integration efforts.
February 2025
Activity
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Quality Metrics
Correctness88.6%
Maintainability89.2%
Architecture87.0%
Performance81.2%
AI Usage20.0%
Skills & Technologies
Programming Languages
BashDockerfileHCLHTMLHaskellJSONJavaScriptMarkdownPythonShell
Technical Skills
API IntegrationAPI InteractionAsynchronous ProgrammingBackend DevelopmentBlockchainBlockchain DevelopmentCI/CDCode CleanupCommand Line InterfaceCommand-line Interface DevelopmentConfiguration ManagementContainerizationData AnalysisDebuggingDebugging Tools
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