
Over 20 months, Fruch engineered robust cloud infrastructure and test automation for the scylladb/scylla-cluster-tests repository, delivering 127 features and resolving 162 bugs. He built cross-cloud provisioning, automated CI/CD pipelines, and enhanced configuration management using Python, Jenkins, and Docker. His work included integrating AWS, Azure, and OCI support, implementing adaptive logging and telemetry, and modernizing test runners with Pytest and Pydantic for type safety. By refactoring deployment workflows and strengthening observability, Fruch improved reliability, cost governance, and developer onboarding. His technical depth is evident in scalable resource management, multi-cloud compatibility, and continuous improvements to test stability and code quality.
April 2026 monthly summary for the scylla-cluster-tests repo. Focused on reliability improvements in deployment automation and improved planning visibility. Fixed a vector-store deployment bug by restoring ami_id_vector_store in the ami_id_params list, ensuring vector-store AMI names resolve to ami-* IDs and preventing misdeployments introduced by the Pydantic config refactor. Updated the project roadmap visual to reflect revised plans and timelines, improving stakeholder alignment. Overall, these changes reduce deployment risk, speed up iteration, and strengthen reporting and collaboration across teams.
April 2026 monthly summary for the scylla-cluster-tests repo. Focused on reliability improvements in deployment automation and improved planning visibility. Fixed a vector-store deployment bug by restoring ami_id_vector_store in the ami_id_params list, ensuring vector-store AMI names resolve to ami-* IDs and preventing misdeployments introduced by the Pydantic config refactor. Updated the project roadmap visual to reflect revised plans and timelines, improving stakeholder alignment. Overall, these changes reduce deployment risk, speed up iteration, and strengthen reporting and collaboration across teams.
Concise monthly summary for 2026-03 (scylla-cluster-tests): Focused on stabilizing chaos-testing workflows, correcting multi-cloud region handling, and accelerating feedback through CI/CD automation. Delivered feature work to improve nemesis configuration, provisioning reliability, and region-specific pipeline correctness, while fixing critical Azure/KMS/version-check and test stability issues. Overall impact: higher test reliability, fewer deployment/configuration errors across GCE/Azure/AWS backends, and faster validation cycles that reduce risk in production rollouts. Technologies/skills demonstrated include Python refactoring and type-safe config handling, pytest-based mocks and integration tests, Jenkins/GitHub Actions CI improvements, and automated testing hooks for immediate feedback.
Concise monthly summary for 2026-03 (scylla-cluster-tests): Focused on stabilizing chaos-testing workflows, correcting multi-cloud region handling, and accelerating feedback through CI/CD automation. Delivered feature work to improve nemesis configuration, provisioning reliability, and region-specific pipeline correctness, while fixing critical Azure/KMS/version-check and test stability issues. Overall impact: higher test reliability, fewer deployment/configuration errors across GCE/Azure/AWS backends, and faster validation cycles that reduce risk in production rollouts. Technologies/skills demonstrated include Python refactoring and type-safe config handling, pytest-based mocks and integration tests, Jenkins/GitHub Actions CI improvements, and automated testing hooks for immediate feedback.
February 2026 monthly summary for scylladb/scylla-cluster-tests focused on delivering business value through UX improvements, reliability, and automation. Key features delivered include a revamped issue reporting workflow with Jira integration, replacing legacy templates with modern, validated forms and direct Jira creation links to streamline bug/task creation and reduce submission duplicates. In reliability and maintenance, dynamic billing project selection was added to Jenkins pipelines, sourcing from the scylladb/finops repository to ensure consistent cost accounting across all major pipelines. Stability improvements were made by disabling specific Scylla-Doctor table collectors pending DOCTOR-19 resolution, reducing diagnostic noise. Automation enhancements include a Renovate regex manager to automatically track scylla-doctor versions, and testing adjustments that accept both disabled and masked fstrim.timer states to reflect real-world masking behavior. Overall, these efforts improved user experience, pipeline consistency, cost visibility, and test reliability while showcasing advanced CI/CD, GitOps, and tooling skills.
February 2026 monthly summary for scylladb/scylla-cluster-tests focused on delivering business value through UX improvements, reliability, and automation. Key features delivered include a revamped issue reporting workflow with Jira integration, replacing legacy templates with modern, validated forms and direct Jira creation links to streamline bug/task creation and reduce submission duplicates. In reliability and maintenance, dynamic billing project selection was added to Jenkins pipelines, sourcing from the scylladb/finops repository to ensure consistent cost accounting across all major pipelines. Stability improvements were made by disabling specific Scylla-Doctor table collectors pending DOCTOR-19 resolution, reducing diagnostic noise. Automation enhancements include a Renovate regex manager to automatically track scylla-doctor versions, and testing adjustments that accept both disabled and masked fstrim.timer states to reflect real-world masking behavior. Overall, these efforts improved user experience, pipeline consistency, cost visibility, and test reliability while showcasing advanced CI/CD, GitOps, and tooling skills.
January 2026 performance-focused monthly summary: Delivered end-to-end OCI-backed provisioning and tagging across CI/CD pipelines. Created OciRegion helper and SCT runner provisioning to automate VCNs, subnets, security lists, and internet gateway in OCI; added complete OCI Jenkins builder utility for region-scoped QA builders; embedded OCI tag definitions into region configuration for automatic tagging. Implemented automatic cloud-resource tagging and project/billing inference across AWS, GCE, and OCI to improve cost governance and traceability. Extended Kubernetes multitenancy with dict-based tenant configuration support, enabling scalable configuration across tenants. Refactored core utilities to resolve circular dependencies, improved versioning utilities, and hardened CI pipelines with pre-commit fixes, JsonSlurperClassic adjustments, and Jenkins parallelization improvements. These changes enable scalable, auditable, and cost-attributable cloud testing across multiple clouds and regions.
January 2026 performance-focused monthly summary: Delivered end-to-end OCI-backed provisioning and tagging across CI/CD pipelines. Created OciRegion helper and SCT runner provisioning to automate VCNs, subnets, security lists, and internet gateway in OCI; added complete OCI Jenkins builder utility for region-scoped QA builders; embedded OCI tag definitions into region configuration for automatic tagging. Implemented automatic cloud-resource tagging and project/billing inference across AWS, GCE, and OCI to improve cost governance and traceability. Extended Kubernetes multitenancy with dict-based tenant configuration support, enabling scalable configuration across tenants. Refactored core utilities to resolve circular dependencies, improved versioning utilities, and hardened CI pipelines with pre-commit fixes, JsonSlurperClassic adjustments, and Jenkins parallelization improvements. These changes enable scalable, auditable, and cost-attributable cloud testing across multiple clouds and regions.
Monthly summary for 2025-12 focusing on delivering cross-cloud infrastructure hardening, configuration-management improvements, and reliability-focused fixes across two repos. Highlights include Kubernetes config enhancements, multi-cloud provider support, and test/CI reliability improvements that collectively raise deployment confidence and reduce operational risk.
Monthly summary for 2025-12 focusing on delivering cross-cloud infrastructure hardening, configuration-management improvements, and reliability-focused fixes across two repos. Highlights include Kubernetes config enhancements, multi-cloud provider support, and test/CI reliability improvements that collectively raise deployment confidence and reduce operational risk.
November 2025 monthly summary for scylladb/scylla-cluster-tests focused on stability, performance, and cloud-readiness improvements. Delivered targeted features to isolate longevity-test triggers, enhanced rolling upgrade reliability for ARM instances, extended pipeline configurability, and expanded cross-cloud resource visibility. Also implemented skip-label and Jira-backed skip logic, introduced Docker registry mirrors for faster image pulls, and added xcloud provider support to the list-resources CLI, enabling better test visibility, cost attribution, and operational efficiency. Fixed critical stability and compatibility bugs across Azure, Docker, and test tooling, reducing noise and improving artifact reliability.
November 2025 monthly summary for scylladb/scylla-cluster-tests focused on stability, performance, and cloud-readiness improvements. Delivered targeted features to isolate longevity-test triggers, enhanced rolling upgrade reliability for ARM instances, extended pipeline configurability, and expanded cross-cloud resource visibility. Also implemented skip-label and Jira-backed skip logic, introduced Docker registry mirrors for faster image pulls, and added xcloud provider support to the list-resources CLI, enabling better test visibility, cost attribution, and operational efficiency. Fixed critical stability and compatibility bugs across Azure, Docker, and test tooling, reducing noise and improving artifact reliability.
October 2025 (2025-10) monthly summary for scylla-cluster-tests. Focused on stabilizing test infrastructure, improving logging, and modernizing the upgrade pipeline to support robust, reliable tier1 environments.
October 2025 (2025-10) monthly summary for scylla-cluster-tests. Focused on stabilizing test infrastructure, improving logging, and modernizing the upgrade pipeline to support robust, reliable tier1 environments.
In September 2025, delivered substantial improvements in Xcloud provisioning, observability, and upgrade workflows for scylla-cluster-tests, while strengthening reliability, governance, and developer experience. The month focused on reducing provisioning friction, improving observability, and tightening security and ownership signals, contributing to faster release cycles and more predictable operations.
In September 2025, delivered substantial improvements in Xcloud provisioning, observability, and upgrade workflows for scylla-cluster-tests, while strengthening reliability, governance, and developer experience. The month focused on reducing provisioning friction, improving observability, and tightening security and ownership signals, contributing to faster release cycles and more predictable operations.
August 2025 focused on enhancing cloud provisioning observability, stabilizing credential workflows, and expanding test infrastructure integration. Delivered Scylla Cloud provisioning monitoring and machine connectivity, added local credential file support for scylla-cloud, enabled SSH server with none authentication for Fabric, updated the YCSB DockerHub build, and added log collection from DB nodes in XCloud. These changes improve deployment reliability, security posture, and operational visibility, enabling faster cloud adoption, more robust test coverage, and streamlined CI/CD for Scylla deployments.
August 2025 focused on enhancing cloud provisioning observability, stabilizing credential workflows, and expanding test infrastructure integration. Delivered Scylla Cloud provisioning monitoring and machine connectivity, added local credential file support for scylla-cloud, enabled SSH server with none authentication for Fabric, updated the YCSB DockerHub build, and added log collection from DB nodes in XCloud. These changes improve deployment reliability, security posture, and operational visibility, enabling faster cloud adoption, more robust test coverage, and streamlined CI/CD for Scylla deployments.
July 2025 performance summary for scylla-cluster-tests focused on delivering cross-region AWS AMI management, strengthening test infrastructure and pipeline reliability, and hardening logging/artifact handling. The work accelerates test isolation across accounts, reduces flakiness in the CI pipeline, and improves observability for faster debugging and audits.
July 2025 performance summary for scylla-cluster-tests focused on delivering cross-region AWS AMI management, strengthening test infrastructure and pipeline reliability, and hardening logging/artifact handling. The work accelerates test isolation across accounts, reduces flakiness in the CI pipeline, and improves observability for faster debugging and audits.
June 2025 highlights for scylladb/scylla-cluster-tests: Delivery focus centered on performance testing reliability, telemetry, code quality, and test infrastructure enhancements, aligned with business value such as stable test results, better observability, and cost-conscious cloud practices. The team delivered targeted features that streamline performance dashboards, improve test governance, and modernize the testing stack, while addressing reliability through targeted bug fixes.
June 2025 highlights for scylladb/scylla-cluster-tests: Delivery focus centered on performance testing reliability, telemetry, code quality, and test infrastructure enhancements, aligned with business value such as stable test results, better observability, and cost-conscious cloud practices. The team delivered targeted features that streamline performance dashboards, improve test governance, and modernize the testing stack, while addressing reliability through targeted bug fixes.
May 2025 performance-focused monthly summary for scylla-cluster-tests: Strengthened CI reliability and trigger logic, stabilized test execution, and improved observability. Key outcomes include: CI workflow reliability enhancements; artifact tests stability improvements; core dump upload permission fix; longer Gemini timeouts reducing flaky tests; and Vector.dev logging with Prometheus metrics for monitoring. These changes deliver faster feedback loops, fewer flaky deployments, and better insight into test and runtime behavior. Technologies demonstrated include GitHub Actions, Hydra integration, container tooling (Podman/Docker), sudo-based permissions, and observability with Vector and Prometheus, plus Java 21 base image modernization.
May 2025 performance-focused monthly summary for scylla-cluster-tests: Strengthened CI reliability and trigger logic, stabilized test execution, and improved observability. Key outcomes include: CI workflow reliability enhancements; artifact tests stability improvements; core dump upload permission fix; longer Gemini timeouts reducing flaky tests; and Vector.dev logging with Prometheus metrics for monitoring. These changes deliver faster feedback loops, fewer flaky deployments, and better insight into test and runtime behavior. Technologies demonstrated include GitHub Actions, Hydra integration, container tooling (Podman/Docker), sudo-based permissions, and observability with Vector and Prometheus, plus Java 21 base image modernization.
April 2025: Delivered end-to-end core-dump collection and debugging infrastructure for SCT tests, enabling Docker-captured dumps with compression and automatic uploads to S3/Argus, plus systemd-coredump integration and robust handling of executable names in dumps. Enhanced test observability and reliability with a new OVERSIZED_ALLOCATION event and refined skip controls mapped to Scylla Doctor issues. Increased provisioning resilience with an AWS Dedicated Host retry across multiple Availability Zones within the same region. Fixed API parameter handling for Azure gallery image creation by using virtual_machine_id in the storage profile source. Resolved Podman tmpfs mounting issues in the Hydra environment by aligning run_in_docker tmpfs handling with Podman-supported arguments. Technologies demonstrated include Docker tooling, systemd-coredump, S3/Argus integration, observability instrumentation, cross-cloud provisioning strategies, and Podman/Hydra CI reliability.
April 2025: Delivered end-to-end core-dump collection and debugging infrastructure for SCT tests, enabling Docker-captured dumps with compression and automatic uploads to S3/Argus, plus systemd-coredump integration and robust handling of executable names in dumps. Enhanced test observability and reliability with a new OVERSIZED_ALLOCATION event and refined skip controls mapped to Scylla Doctor issues. Increased provisioning resilience with an AWS Dedicated Host retry across multiple Availability Zones within the same region. Fixed API parameter handling for Azure gallery image creation by using virtual_machine_id in the storage profile source. Resolved Podman tmpfs mounting issues in the Hydra environment by aligning run_in_docker tmpfs handling with Podman-supported arguments. Technologies demonstrated include Docker tooling, systemd-coredump, S3/Argus integration, observability instrumentation, cross-cloud provisioning strategies, and Podman/Hydra CI reliability.
March 2025 monthly summary for scylla-cluster-tests focusing on delivering business value through reliable CI, security-aligned images, and enhanced observability, while strengthening compatibility with Elasticsearch 7+ and modern Docker workflows.
March 2025 monthly summary for scylla-cluster-tests focusing on delivering business value through reliable CI, security-aligned images, and enhanced observability, while strengthening compatibility with Elasticsearch 7+ and modern Docker workflows.
February 2025: Scylla cluster tests repo delivered strengthened versioning/RC handling, enhanced resource lifecycle management, and multiple bug fixes that improve upgrade reliability, RF update safety, and log collection robustness. These changes reduce upgrade risk, improve cross-cloud capabilities, and demonstrate strong automation and cross-cutting engineering.
February 2025: Scylla cluster tests repo delivered strengthened versioning/RC handling, enhanced resource lifecycle management, and multiple bug fixes that improve upgrade reliability, RF update safety, and log collection robustness. These changes reduce upgrade risk, improve cross-cloud capabilities, and demonstrate strong automation and cross-cutting engineering.
January 2025 performance summary for scylla-cluster-tests. Focused on delivering robust upgrade readiness, broader cloud support, and enhanced testing infrastructure to accelerate secure, reliable releases. Key outcomes include: Argus upgrade version reporting enhancements with improved version regex and richer branch/version metadata; Azure support added to the scylla-cluster-tests framework enabling SSH connectivity and Azure VM management; Offline installer simplified by removing python2 and Java packages to reduce maintenance overhead; Comprehensive CI/CD and testing infrastructure improvements including updating integration tests to newer ScyllaDB versions, hardening region handling for non-AWS environments, extended commit linting, Renovate scheduling updates, enabling Docker scanning for workflows, reclassifying Python driver tests as integration tests, and enabling Docker support for stress tooling; OSS-to-enterprise features consolidation in Jenkins pipelines with merging enterprise features into OSS; and log collection and release automation improvements including LogCollector switch to zstd, and Jenkinsfile automation to fetch latest Scylla release.
January 2025 performance summary for scylla-cluster-tests. Focused on delivering robust upgrade readiness, broader cloud support, and enhanced testing infrastructure to accelerate secure, reliable releases. Key outcomes include: Argus upgrade version reporting enhancements with improved version regex and richer branch/version metadata; Azure support added to the scylla-cluster-tests framework enabling SSH connectivity and Azure VM management; Offline installer simplified by removing python2 and Java packages to reduce maintenance overhead; Comprehensive CI/CD and testing infrastructure improvements including updating integration tests to newer ScyllaDB versions, hardening region handling for non-AWS environments, extended commit linting, Renovate scheduling updates, enabling Docker scanning for workflows, reclassifying Python driver tests as integration tests, and enabling Docker support for stress tooling; OSS-to-enterprise features consolidation in Jenkins pipelines with merging enterprise features into OSS; and log collection and release automation improvements including LogCollector switch to zstd, and Jenkinsfile automation to fetch latest Scylla release.
December 2024 monthly summary for scylla-cluster-tests focusing on business outcomes and technical excellence across two primary repositories. The month delivered tangible reliability, security and deployment improvements, while enabling scalable development workflows and clearer production configurations.
December 2024 monthly summary for scylla-cluster-tests focusing on business outcomes and technical excellence across two primary repositories. The month delivered tangible reliability, security and deployment improvements, while enabling scalable development workflows and clearer production configurations.
Month: 2024-11 Key focus: reliability, performance testing isolation, security, and cross-platform stability across the Scylla cluster test tooling. Delivered features to optimize resource usage and ensure safe upgrades, while tightening security and test reliability. Key features delivered: - Dedicated AWS hosts management for performance testing (scylladb/scylla-cluster-tests): added dedicated-host support with new config options (use_dedicated_host, aws_dedicated_host_ids, post_behavior_dedicated_host), plus cleanup mechanisms to release unused hosts, tag-based filtering (TestId), and integration with hydra clean-resources for precise resource management. Commits: 1247626c..., eac941fb..., d513ce74... - Stability and dependencies maintenance (scylladbbot/scylla-cluster-tests): upgraded core dependencies and improved test stability/build reliability (Paramiko, Python version pinning, test rewrites, curl usage, ARM image resolution). Commits include: 3418fb9c..., fadd8d38..., 6a52abed..., a74827f2..., 8f16d05a..., 1434c81d... Major bugs fixed: - Dynamic capacity reservation during runtime: ensure use_capacity_reservation is read from instance parameters and applied when adding nodes at runtime. Commit: 7cc3c3f3... - Rolling upgrade downgrade path fix: remove flawed downgrade procedure for scylla-cqlsh to prevent double-downgrade during rolling upgrades. Commit: 9c57e470... - Amazon Linux 2023 Java/Scylla Doctor install reliability: fixes to Java installation and Scylla Doctor collector setup to restore startup/collection. Commit: eba50550... - MySQL connector Python security patch: upgrade mysql-connector-python from 8.0.26 to 9.1.0 to address CVE-2024-21272. Commit: e1341778... - Cross-platform instance name compatibility: sanitize user_prefix by removing non-alphanumeric characters except hyphens to avoid AWS/Docker naming issues. Commit: 952a0cd5... Overall impact and accomplishments: - Increased reliability and performance isolation for performance testing through dedicated hosts, reducing interference and enabling precise lifecycle management. - Strengthened security posture with timely dependency patching (MySQL connector) and more robust build/test pipelines, improving overall product security and stability. - Improved upgrade safety and operational resilience, minimizing risk during rolling upgrades with fixes to downgrade procedures and runtime capacity logic. - Enhanced cross-platform compatibility and resilience, enabling consistent behavior across AWS and Docker deployments, with a stronger focus on automation and resource hygiene. Technologies and skills demonstrated: - AWS dedicated hosts, tag-based resource management, Hydra integration, and automated cleanup – enabling cost control and cleaner test environments. - Runtime capacity management, dynamic provisioning, and robust upgrade workflows. - Dependency management, Python ecosystem hardening (Paramiko, Python pinning), ARM/image handling, and test suite reliability improvements. - Security-minded patching and naming sanitation for cross-platform deployments.
Month: 2024-11 Key focus: reliability, performance testing isolation, security, and cross-platform stability across the Scylla cluster test tooling. Delivered features to optimize resource usage and ensure safe upgrades, while tightening security and test reliability. Key features delivered: - Dedicated AWS hosts management for performance testing (scylladb/scylla-cluster-tests): added dedicated-host support with new config options (use_dedicated_host, aws_dedicated_host_ids, post_behavior_dedicated_host), plus cleanup mechanisms to release unused hosts, tag-based filtering (TestId), and integration with hydra clean-resources for precise resource management. Commits: 1247626c..., eac941fb..., d513ce74... - Stability and dependencies maintenance (scylladbbot/scylla-cluster-tests): upgraded core dependencies and improved test stability/build reliability (Paramiko, Python version pinning, test rewrites, curl usage, ARM image resolution). Commits include: 3418fb9c..., fadd8d38..., 6a52abed..., a74827f2..., 8f16d05a..., 1434c81d... Major bugs fixed: - Dynamic capacity reservation during runtime: ensure use_capacity_reservation is read from instance parameters and applied when adding nodes at runtime. Commit: 7cc3c3f3... - Rolling upgrade downgrade path fix: remove flawed downgrade procedure for scylla-cqlsh to prevent double-downgrade during rolling upgrades. Commit: 9c57e470... - Amazon Linux 2023 Java/Scylla Doctor install reliability: fixes to Java installation and Scylla Doctor collector setup to restore startup/collection. Commit: eba50550... - MySQL connector Python security patch: upgrade mysql-connector-python from 8.0.26 to 9.1.0 to address CVE-2024-21272. Commit: e1341778... - Cross-platform instance name compatibility: sanitize user_prefix by removing non-alphanumeric characters except hyphens to avoid AWS/Docker naming issues. Commit: 952a0cd5... Overall impact and accomplishments: - Increased reliability and performance isolation for performance testing through dedicated hosts, reducing interference and enabling precise lifecycle management. - Strengthened security posture with timely dependency patching (MySQL connector) and more robust build/test pipelines, improving overall product security and stability. - Improved upgrade safety and operational resilience, minimizing risk during rolling upgrades with fixes to downgrade procedures and runtime capacity logic. - Enhanced cross-platform compatibility and resilience, enabling consistent behavior across AWS and Docker deployments, with a stronger focus on automation and resource hygiene. Technologies and skills demonstrated: - AWS dedicated hosts, tag-based resource management, Hydra integration, and automated cleanup – enabling cost control and cleaner test environments. - Runtime capacity management, dynamic provisioning, and robust upgrade workflows. - Dependency management, Python ecosystem hardening (Paramiko, Python pinning), ARM/image handling, and test suite reliability improvements. - Security-minded patching and naming sanitation for cross-platform deployments.
Month: 2024-01. This monthly summary covers the work on scylladb/scylla-cluster-tests, focusing on improving log management through targeted feature delivery. Key feature delivered: a new logging severity level Severity.SUPPRESS to skip non-actionable events, reducing log clutter during periods of excessive warnings. The change is backed by commit e11256196f4289b78af6b3f3d081bd77715b68cf with message 'feature(events): introduce Severity.SUPRESS'. Impact includes more focused logs, easier troubleshooting, and improved CI/test stability due to reduced noise. Technologies/skills demonstrated include logging framework enhancement, disciplined feature delivery, and clear commit messaging that supports maintainability and future auditing.
Month: 2024-01. This monthly summary covers the work on scylladb/scylla-cluster-tests, focusing on improving log management through targeted feature delivery. Key feature delivered: a new logging severity level Severity.SUPPRESS to skip non-actionable events, reducing log clutter during periods of excessive warnings. The change is backed by commit e11256196f4289b78af6b3f3d081bd77715b68cf with message 'feature(events): introduce Severity.SUPRESS'. Impact includes more focused logs, easier troubleshooting, and improved CI/test stability due to reduced noise. Technologies/skills demonstrated include logging framework enhancement, disciplined feature delivery, and clear commit messaging that supports maintainability and future auditing.
December 2023 focused on strengthening configuration safety and developer experience within scylla-cluster-tests. Completed a major refactor to replace the custom dict-based SCT configuration with a Pydantic BaseModel, enabling stronger type safety, automatic validation, and clearer, self-documented options. Updated documentation and reduced boilerplate. No notable bugs fixed this month in this repository. The changes lay groundwork for more reliable test configurations and faster onboarding for new contributors.
December 2023 focused on strengthening configuration safety and developer experience within scylla-cluster-tests. Completed a major refactor to replace the custom dict-based SCT configuration with a Pydantic BaseModel, enabling stronger type safety, automatic validation, and clearer, self-documented options. Updated documentation and reduced boilerplate. No notable bugs fixed this month in this repository. The changes lay groundwork for more reliable test configurations and faster onboarding for new contributors.

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