
Jurre Jilles developed advanced automation and recipe systems for GregTechCEu/GregTech-Modern, focusing on robust backend logic and user-facing improvements. He engineered features such as color-based input grouping, parallelization modules, and enhanced machine construction, leveraging Java and Gradle to ensure maintainability and extensibility. His work included rigorous testing frameworks, documentation enhancements, and cross-language API parity, addressing both developer and player needs. By refactoring core systems and introducing validation layers, Jurre improved reliability, reduced runtime errors, and streamlined upgrade paths. His technical approach emphasized modularity, efficient resource handling, and clear documentation, resulting in stable, scalable mod development and smoother CI/CD workflows.

February 2026 performance summary for GregTech-Modern focusing on testing robustness, UX simplification, and secure rendering/access control, complemented by upgrade guidance to reduce post-upgrade risk. Deliverables established stronger validation for multiblock machines, simplified the distillery preview, and refactored the LampItemRenderer with improved recipe unlock logic, supported by explicit compatibility notes to ease upgrades.
February 2026 performance summary for GregTech-Modern focusing on testing robustness, UX simplification, and secure rendering/access control, complemented by upgrade guidance to reduce post-upgrade risk. Deliverables established stronger validation for multiblock machines, simplified the distillery preview, and refactored the LampItemRenderer with improved recipe unlock logic, supported by explicit compatibility notes to ease upgrades.
January 2026 performance summary for GregTechCEu/GregTech-Modern and Frontiers-PackForge/CosmicCore, focused on delivering reliable automation, improved usability, and cross-version stability. Key efforts spanned machine construction UX improvements, a more reliable recipe system, multi-block stability, energy accounting refinements, and documentation enhancements to raise review quality and deployment confidence.
January 2026 performance summary for GregTechCEu/GregTech-Modern and Frontiers-PackForge/CosmicCore, focused on delivering reliable automation, improved usability, and cross-version stability. Key efforts spanned machine construction UX improvements, a more reliable recipe system, multi-block stability, energy accounting refinements, and documentation enhancements to raise review quality and deployment confidence.
December 2025 highlights across GregTech-Modern and CosmicCore. Key features delivered include documentation and compatibility enhancements for GregTech-Modern, including multi-version docs hosting with mike, clearer element creation guidance, and an updated client-side compatibility check to GTCEu; plus an enhancement to shaped recipe validation enabling recycle info via tags. In CosmicCore, Steam-based Machine Integration delivers improved steam fluid transfer and UI clarity through updated Dawn Forge tooltips and a shift from electric overclocking to a steam-based system. Major bug-related improvements include replacing the LDLib client-side check with the GTCEu check to reduce compatibility issues; no critical regressions were observed. Overall impact: improved onboarding, stronger cross-version compatibility, and more efficient steam-based gameplay. Tech stack and skills demonstrated: documentation tooling (mike), data generation hooks (datagen), tag-based recipe validation, Steam-based system design, and UI/UX clarity in tooltips.
December 2025 highlights across GregTech-Modern and CosmicCore. Key features delivered include documentation and compatibility enhancements for GregTech-Modern, including multi-version docs hosting with mike, clearer element creation guidance, and an updated client-side compatibility check to GTCEu; plus an enhancement to shaped recipe validation enabling recycle info via tags. In CosmicCore, Steam-based Machine Integration delivers improved steam fluid transfer and UI clarity through updated Dawn Forge tooltips and a shift from electric overclocking to a steam-based system. Major bug-related improvements include replacing the LDLib client-side check with the GTCEu check to reduce compatibility issues; no critical regressions were observed. Overall impact: improved onboarding, stronger cross-version compatibility, and more efficient steam-based gameplay. Tech stack and skills demonstrated: documentation tooling (mike), data generation hooks (datagen), tag-based recipe validation, Steam-based system design, and UI/UX clarity in tooltips.
Monthly summary for 2025-11 covering GregTech-Modern and CosmicCore. This report highlights key features delivered, major bugs fixed, overall impact, and technologies demonstrated, aligned to business value and technical excellence.
Monthly summary for 2025-11 covering GregTech-Modern and CosmicCore. This report highlights key features delivered, major bugs fixed, overall impact, and technologies demonstrated, aligned to business value and technical excellence.
October 2025 (GregTech-Modern) delivered targeted stability and usability improvements across core features and developer docs. Key outcomes include a crash fix in automatic material recipe generation, an enhanced Assembly Line with ordered slice-by-slice ingredient consumption, and a documentation reorganization to improve multiblock discoverability. These changes reduce runtime crashes, prevent incorrect executions due to input order, and improve developer onboarding and maintenance through clearer docs. The work involved code refactors, added tests to validate input sequencing, and documentation restructuring.
October 2025 (GregTech-Modern) delivered targeted stability and usability improvements across core features and developer docs. Key outcomes include a crash fix in automatic material recipe generation, an enhanced Assembly Line with ordered slice-by-slice ingredient consumption, and a documentation reorganization to improve multiblock discoverability. These changes reduce runtime crashes, prevent incorrect executions due to input order, and improve developer onboarding and maintenance through clearer docs. The work involved code refactors, added tests to validate input sequencing, and documentation restructuring.
Month 2025-09 focused on delivering developer-facing value, stabilizing core systems, and enabling future growth across two repositories. Key outcomes include cross-language API parity and comprehensive docs for GregTech-Modern (Java and JavaScript) with expanded tick subscriptions, recipes, and ambiguous method handling; improved build tooling and repository configuration for smoother CI/CD and snapshot access; user-facing UI enhancements such as manual EMI machine ordering and Steam Boiler UI fixes; stabilization of core logic with fixes to voltage tier values, modifier reapplication on resume, and KubeJS condition handling; and performance-oriented parallelization enhancements in CosmicCore via a new module_hatch part and a moduleParallel modifier to boost recipe throughput.
Month 2025-09 focused on delivering developer-facing value, stabilizing core systems, and enabling future growth across two repositories. Key outcomes include cross-language API parity and comprehensive docs for GregTech-Modern (Java and JavaScript) with expanded tick subscriptions, recipes, and ambiguous method handling; improved build tooling and repository configuration for smoother CI/CD and snapshot access; user-facing UI enhancements such as manual EMI machine ordering and Steam Boiler UI fixes; stabilization of core logic with fixes to voltage tier values, modifier reapplication on resume, and KubeJS condition handling; and performance-oriented parallelization enhancements in CosmicCore via a new module_hatch part and a moduleParallel modifier to boost recipe throughput.
August 2025 performance highlights: Delivered strategic building and reliability enhancements, strengthened core recipe processing, and expanded test infrastructure across three repos. Key user-facing features improve building flow and item management, core recipe validation reduces waste and instability, and robust CI/testing accelerates safe iteration and quality. Business value is reflected in faster feature delivery, fewer regressions, and improved player experience through more predictable systems.
August 2025 performance highlights: Delivered strategic building and reliability enhancements, strengthened core recipe processing, and expanded test infrastructure across three repos. Key user-facing features improve building flow and item management, core recipe validation reduces waste and instability, and robust CI/testing accelerates safe iteration and quality. Business value is reflected in faster feature delivery, fewer regressions, and improved player experience through more predictable systems.
July 2025 monthly highlights for GregTech-Modern (GregTechCEu/GregTech-Modern). Key features delivered include GTCEu Color-based Input Grouping and Quantum Tank Support, and a robust Recipe system with performance enhancements. Also delivered stability improvements in laser pipe networks, material and crafting property updates, and a GTCEu GameTest framework. Major bugs fixed include recipe-group null-key issues, distinct state inconsistencies in buffers/proxies, recipe display indicator bug, and improvements to power-failing logic. Overall impact: increased automation reliability and maintainability, reduced runtime errors, and faster QA cycles. Technologies demonstrated: Java/Minecraft modding patterns, advanced testing via GameTest framework, performance and error-handling improvements, commit discipline and traceability.
July 2025 monthly highlights for GregTech-Modern (GregTechCEu/GregTech-Modern). Key features delivered include GTCEu Color-based Input Grouping and Quantum Tank Support, and a robust Recipe system with performance enhancements. Also delivered stability improvements in laser pipe networks, material and crafting property updates, and a GTCEu GameTest framework. Major bugs fixed include recipe-group null-key issues, distinct state inconsistencies in buffers/proxies, recipe display indicator bug, and improvements to power-failing logic. Overall impact: increased automation reliability and maintainability, reduced runtime errors, and faster QA cycles. Technologies demonstrated: Java/Minecraft modding patterns, advanced testing via GameTest framework, performance and error-handling improvements, commit discipline and traceability.
June 2025 performance summary across three repositories, highlighting the delivery of key gameplay features, improvements to automation/configurability, and stability fixes that drive business value. In UtilitiesInExcess, delivered three new blocks that expand gameplay and integration: Redstone Clock (timer with external control) with registration/localization updates, Drum (Fluid Container) with storage/dispense capabilities and NBT-aware interactions, and Cursed Earth (enhanced mob spawning) with configurable spawn behavior. In GregTech-Modern, enabled dynamic IO reconfiguration by inverting input/output directions for hatches and buses, introduced ME stocking optimization to prioritize items/fluids by availability, and implemented validation and tagging improvements (CLEANROOM_DOORS, door predicates) along with quality tooling enhancements (git attributes auto). Also added a Ceramic Plate crafting recipe in GT5-Unofficial to broaden material pathways. A durability-related bug was fixed for armor components to correctly report max damage. The combined work enhances automation, configurability, and resource throughput while increasing stability and maintainability across the codebase.
June 2025 performance summary across three repositories, highlighting the delivery of key gameplay features, improvements to automation/configurability, and stability fixes that drive business value. In UtilitiesInExcess, delivered three new blocks that expand gameplay and integration: Redstone Clock (timer with external control) with registration/localization updates, Drum (Fluid Container) with storage/dispense capabilities and NBT-aware interactions, and Cursed Earth (enhanced mob spawning) with configurable spawn behavior. In GregTech-Modern, enabled dynamic IO reconfiguration by inverting input/output directions for hatches and buses, introduced ME stocking optimization to prioritize items/fluids by availability, and implemented validation and tagging improvements (CLEANROOM_DOORS, door predicates) along with quality tooling enhancements (git attributes auto). Also added a Ceramic Plate crafting recipe in GT5-Unofficial to broaden material pathways. A durability-related bug was fixed for armor components to correctly report max damage. The combined work enhances automation, configurability, and resource throughput while increasing stability and maintainability across the codebase.
May 2025 monthly summary: Delivered significant feature enhancements and stability fixes across GT5-Unofficial and GT-New-Horizons-Modpack, driving resource processing accuracy and UX clarity while reducing operational risk.
May 2025 monthly summary: Delivered significant feature enhancements and stability fixes across GT5-Unofficial and GT-New-Horizons-Modpack, driving resource processing accuracy and UX clarity while reducing operational risk.
April 2025 highlights across GT5-Unofficial, AE2FluidCraft-Rework, GT-New-Horizons-Modpack, and Applied-Energistics-2-Unofficial. Delivered core processing improvements, consistency refinements, and clearer in-game data, boosting reliability and gameplay fidelity. Key features and fixes were implemented with a focus on system robustness and cross-repo consistency.
April 2025 highlights across GT5-Unofficial, AE2FluidCraft-Rework, GT-New-Horizons-Modpack, and Applied-Energistics-2-Unofficial. Delivered core processing improvements, consistency refinements, and clearer in-game data, boosting reliability and gameplay fidelity. Key features and fixes were implemented with a focus on system robustness and cross-repo consistency.
March 2025 monthly summary for GTNewHorizons/GT5-Unofficial focused on reliability improvements and modular automation enhancements. Delivered two targeted changes with clear impact on resource usage and control capabilities, supported by traceable commits.
March 2025 monthly summary for GTNewHorizons/GT5-Unofficial focused on reliability improvements and modular automation enhancements. Delivered two targeted changes with clear impact on resource usage and control capabilities, supported by traceable commits.
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