acl2/acl2
Feb 2025 – Feb 2026
13 Months active
Languages Used
Common LispHTMLLispMakefileTexthtmllispACL2
Technical Skills
Bug FixingBuild System ManagementBuild SystemsCode MaintenanceCode RefactoringCompiler Development
Matt Kaufmann
PROFILE
Matt Kaufmann
J Moore worked extensively on the acl2/acl2 repository, delivering a steady stream of features and fixes that improved documentation, build reliability, and formal verification workflows. Over thirteen months, he migrated and synchronized documentation to xdoc, optimized include-book performance, and enhanced error handling for user-facing commands. His technical approach combined Common Lisp and ACL2 with careful build system management, ensuring compatibility across SBCL, GCL, and Allegro CL. By refining regression testing, onboarding materials, and certification processes, J Moore addressed both usability and correctness. The work demonstrated depth in formal methods, code maintenance, and system configuration, resulting in a robust codebase.
Overall Statistics
Feature vs Bugs
63%Features
Repository Contributions
123Total
Bugs
20
Commits
123
Features
34
Lines of code
1,944,804
Activity Months13
Your Network
32 peopleSame Organization
@cs.utexas.edu2
Shared Repositories
30
Lottie-uiMember
Aakash KoneruMember
Aakash KoneruMember
Aakash KoneruMember
Ankit KumarMember
Eric McCarthyMember
Cuong ChauMember
David RussinoffMember
Daniil IaitskovMember
Work History
February 2026
2 Commits • 1 Features
Feb 1, 2026February 2026: Delivered documentation-focused improvements in acl2/acl2 to enhance developer experience and reduce misconfiguration risk. Key deliverables include readability improvements for dark backgrounds with enhanced typewriter font rendering, and updated encoding guidance for ACL2 usage and Emacs configuration. No major bugs fixed this month; the work emphasizes documentation quality, onboarding efficiency, and long-term maintainability. Strong collaboration with the community (Daniil Iaitskov and Grant Jurgensen) ensured alignment with user feedback and traceability through commit notes.
2 Commits • 1 Features
Feb 1, 2026February 2026: Delivered documentation-focused improvements in acl2/acl2 to enhance developer experience and reduce misconfiguration risk. Key deliverables include readability improvements for dark backgrounds with enhanced typewriter font rendering, and updated encoding guidance for ACL2 usage and Emacs configuration. No major bugs fixed this month; the work emphasizes documentation quality, onboarding efficiency, and long-term maintainability. Strong collaboration with the community (Daniil Iaitskov and Grant Jurgensen) ensured alignment with user feedback and traceability through commit notes.
February 2026
January 2026
15 Commits • 3 Features
Jan 1, 2026For 2026-01, ACL2 development focused on reliability, performance, and documentation, with key capabilities delivered to improve compatibility, build stability, and release readiness. The year starts strong with targeted fixes, refactors, and better documentation helping maintainers and users alike.
January 2026
15 Commits • 3 Features
Jan 1, 2026For 2026-01, ACL2 development focused on reliability, performance, and documentation, with key capabilities delivered to improve compatibility, build stability, and release readiness. The year starts strong with targeted fixes, refactors, and better documentation helping maintainers and users alike.
December 2025
11 Commits • 2 Features
Dec 1, 2025December 2025 ACL2 development delivered a set of focused documentation, usability, and integration improvements that directly raise user productivity and system reliability. Key efforts centered on revamping documentation and include-book UX, strengthening error handling, and enabling HOL theory integration through export books. The work reduces support overhead, accelerates onboarding, and improves the robustness of ACL2 in real-world use. Key achievements and outcomes include improvements to include-book performance and path usability, clearer and safer error reporting for invalid arguments and missing package names, and the introduction of HOL export books that expose encapsulated events and axioms for smoother translation from HOL theories to ACL2(zfc). In addition, targeted documentation topic edits and spelling fixes across ACL2 docs improve maintainability and discoverability, supported by minor fixes to example workflows and regression checks.
11 Commits • 2 Features
Dec 1, 2025December 2025 ACL2 development delivered a set of focused documentation, usability, and integration improvements that directly raise user productivity and system reliability. Key efforts centered on revamping documentation and include-book UX, strengthening error handling, and enabling HOL theory integration through export books. The work reduces support overhead, accelerates onboarding, and improves the robustness of ACL2 in real-world use. Key achievements and outcomes include improvements to include-book performance and path usability, clearer and safer error reporting for invalid arguments and missing package names, and the introduction of HOL export books that expose encapsulated events and axioms for smoother translation from HOL theories to ACL2(zfc). In addition, targeted documentation topic edits and spelling fixes across ACL2 docs improve maintainability and discoverability, supported by minor fixes to example workflows and regression checks.
December 2025
November 2025
10 Commits • 1 Features
Nov 1, 2025November 2025 ACL2 monthly highlights: Delivered targeted documentation improvements to onboarding and usage guidance; addressed critical correctness and compatibility issues across the verification stack; and refined core data structures and event processing to improve reliability and maintainability. These efforts directly support faster onboarding, more reliable proofs, and smoother cross-Lisp compatibility tests.
November 2025
10 Commits • 1 Features
Nov 1, 2025November 2025 ACL2 monthly highlights: Delivered targeted documentation improvements to onboarding and usage guidance; addressed critical correctness and compatibility issues across the verification stack; and refined core data structures and event processing to improve reliability and maintainability. These efforts directly support faster onboarding, more reliable proofs, and smoother cross-Lisp compatibility tests.
October 2025
4 Commits • 3 Features
Oct 1, 2025October 2025: Delivered stability and clarity improvements in acl2/acl2 with a focus on certification reliability and developer experience. Key changes include disabling waterfall-parallelism for ACL2(p) in targeted books to prevent certification failures, updating installation docs to use tar jxf for macOS compatibility and broader OS support, refining constraint-info documentation to clarify return values, and a minor code-quality typo fix in an ACL2 Lisp comment. These efforts reduce false certification failures, streamline cross-platform installations, improve documentation accuracy, and enhance code readability and maintainability.
4 Commits • 3 Features
Oct 1, 2025October 2025: Delivered stability and clarity improvements in acl2/acl2 with a focus on certification reliability and developer experience. Key changes include disabling waterfall-parallelism for ACL2(p) in targeted books to prevent certification failures, updating installation docs to use tar jxf for macOS compatibility and broader OS support, refining constraint-info documentation to clarify return values, and a minor code-quality typo fix in an ACL2 Lisp comment. These efforts reduce false certification failures, streamline cross-platform installations, improve documentation accuracy, and enhance code readability and maintainability.
October 2025
September 2025
11 Commits • 4 Features
Sep 1, 2025September 2025 monthly summary for acl2/acl2: Delivered targeted improvements across inlining, regression testing, model maintenance, and documentation. The work emphasizes reliability, portability, and maintainability to accelerate stable releases and broaden ecosystem compatibility.
September 2025
11 Commits • 4 Features
Sep 1, 2025September 2025 monthly summary for acl2/acl2: Delivered targeted improvements across inlining, regression testing, model maintenance, and documentation. The work emphasizes reliability, portability, and maintainability to accelerate stable releases and broaden ecosystem compatibility.
August 2025
3 Commits • 3 Features
Aug 1, 2025August 2025 monthly summary for acl2/acl2 focusing on documentation quality, navigability, and deployment safety. Delivered targeted documentation improvements and a protective deployment safeguard to reduce operational risk during a transition to a new manual deployment workflow. These efforts enhance user guidance, streamline onboarding and reviews, and mitigate potential deployment errors while maintaining alignment with ongoing product goals.
3 Commits • 3 Features
Aug 1, 2025August 2025 monthly summary for acl2/acl2 focusing on documentation quality, navigability, and deployment safety. Delivered targeted documentation improvements and a protective deployment safeguard to reduce operational risk during a transition to a new manual deployment workflow. These efforts enhance user guidance, streamline onboarding and reviews, and mitigate potential deployment errors while maintaining alignment with ongoing product goals.
August 2025
July 2025
21 Commits • 5 Features
Jul 1, 2025July 2025 ACL2 monthly summary: Focused on stabilizing SBCL compatibility, advancing documentation modernization, and tightening build/packaging quality. Delivered targeted SBCL fixes, refreshed and synchronized documentation (doc.lisp, installation notes, and migration of installation instructions into xdoc), refined terminology for clarity, and implemented packaging/build improvements that reduce risk and improve developer onboarding and user reliability.
July 2025
21 Commits • 5 Features
Jul 1, 2025July 2025 ACL2 monthly summary: Focused on stabilizing SBCL compatibility, advancing documentation modernization, and tightening build/packaging quality. Delivered targeted SBCL fixes, refreshed and synchronized documentation (doc.lisp, installation notes, and migration of installation instructions into xdoc), refined terminology for clarity, and implemented packaging/build improvements that reduce risk and improve developer onboarding and user reliability.
June 2025
6 Commits • 3 Features
Jun 1, 2025June 2025, acl2/acl2: Focused on documentation accuracy, build reliability, and runtime performance. Key deliverables include a holistic documentation and release-note synchronization (commits: 632538583004c34f6b2be2fa7e20325debee1c8b, 7c8a2d1b58da5b9a173fa9970a2b1ec430027a54, f50b2e3c8a180d653296989c06385b19f286b5b5, 8f6ee6eddcfa4120e65abe09d1058df9a1f3121d), a substantial performance optimization for include-book loading (commit a676ee28316319ed2907139b94994ded825c2094), and a build-system improvement to recognize workshop2025 as a phony target (commit 365c5edd67103377ba528b8fd1ad8469dfdfcd09). Impact: clearer end-user guidance, faster system-book loading, and a more robust, automated build and release process. Skills demonstrated: Lisp doc tooling, macroexpansion optimization, with-output translation, and GNU Makefile workflow improvements.
6 Commits • 3 Features
Jun 1, 2025June 2025, acl2/acl2: Focused on documentation accuracy, build reliability, and runtime performance. Key deliverables include a holistic documentation and release-note synchronization (commits: 632538583004c34f6b2be2fa7e20325debee1c8b, 7c8a2d1b58da5b9a173fa9970a2b1ec430027a54, f50b2e3c8a180d653296989c06385b19f286b5b5, 8f6ee6eddcfa4120e65abe09d1058df9a1f3121d), a substantial performance optimization for include-book loading (commit a676ee28316319ed2907139b94994ded825c2094), and a build-system improvement to recognize workshop2025 as a phony target (commit 365c5edd67103377ba528b8fd1ad8469dfdfcd09). Impact: clearer end-user guidance, faster system-book loading, and a more robust, automated build and release process. Skills demonstrated: Lisp doc tooling, macroexpansion optimization, with-output translation, and GNU Makefile workflow improvements.
June 2025
May 2025
17 Commits • 3 Features
May 1, 2025May 2025 monthly summary for acl2/acl2 focusing on delivering business value and technical excellence: Key features delivered: - Publications and ACL2 Documentation Overhaul: Migrated and restructured ACL2 publications, books, and documentation to xdoc; added new entries for Cantor's Theorem; extended Schroeder-Bernstein entry; refreshed "What’s New in Books"; integrated hol-in-acl2/ directory updates and related workshop resources; synchronized core doc Lisp files (doc.lisp) and SBCL usage notes to improve publishability and consistency. - Formal Verification Content and Books: Added formal verification content including a new proof file for Linear Time Majority Vote and new books divp-by-casting.lisp and majority-vote.lisp, with accompanying (:doc) and publishing entries to streamline user access to proofs and examples. - Project Structure Rename and Documentation Consistency: Renamed hol-acl2 to acl2-in-hol and aligned documentation references to the new path, reducing confusion and improving maintainability. - Trans* Function Bug Fix and Guard Subterm Improvement: Fixed a trans* handling bug with make-event and :on-behalf-of; enhanced guard generation simplification to avoid quadratic blowups, improving build reliability and performance. Major bugs fixed: - Trans* Function Bug Fix and Guard Subterm Improvement: Resolved a bug in trans* handling and mitigated guard explosion scenarios, leading to more reliable builds and faster feedback cycles. Overall impact and accomplishments: - Strengthened documentation publishing pipeline via xdoc migrations, enabling cleaner builds, easier localization, and better developer onboarding. - Expanded formally verified material, enabling stronger correctness assurances for users and broader educational usage. - Improved repository hygiene and documentation consistency, reducing maintenance overhead and potential misreferences for downstream users. - Performance and reliability gains in core tooling through targeted bug fixes, translating to faster development cycles and fewer build/framing issues. Technologies/skills demonstrated: - Lisp/ACL2, xdoc publication workflow, doc.lisp synchronization, SBCL notes, and manual integration. - Formal verification content management, proof file integration, and documentation for formal books. - Repository restructuring with minimal disruption, and guard/term simplification optimization for trans* processing.
May 2025
17 Commits • 3 Features
May 1, 2025May 2025 monthly summary for acl2/acl2 focusing on delivering business value and technical excellence: Key features delivered: - Publications and ACL2 Documentation Overhaul: Migrated and restructured ACL2 publications, books, and documentation to xdoc; added new entries for Cantor's Theorem; extended Schroeder-Bernstein entry; refreshed "What’s New in Books"; integrated hol-in-acl2/ directory updates and related workshop resources; synchronized core doc Lisp files (doc.lisp) and SBCL usage notes to improve publishability and consistency. - Formal Verification Content and Books: Added formal verification content including a new proof file for Linear Time Majority Vote and new books divp-by-casting.lisp and majority-vote.lisp, with accompanying (:doc) and publishing entries to streamline user access to proofs and examples. - Project Structure Rename and Documentation Consistency: Renamed hol-acl2 to acl2-in-hol and aligned documentation references to the new path, reducing confusion and improving maintainability. - Trans* Function Bug Fix and Guard Subterm Improvement: Fixed a trans* handling bug with make-event and :on-behalf-of; enhanced guard generation simplification to avoid quadratic blowups, improving build reliability and performance. Major bugs fixed: - Trans* Function Bug Fix and Guard Subterm Improvement: Resolved a bug in trans* handling and mitigated guard explosion scenarios, leading to more reliable builds and faster feedback cycles. Overall impact and accomplishments: - Strengthened documentation publishing pipeline via xdoc migrations, enabling cleaner builds, easier localization, and better developer onboarding. - Expanded formally verified material, enabling stronger correctness assurances for users and broader educational usage. - Improved repository hygiene and documentation consistency, reducing maintenance overhead and potential misreferences for downstream users. - Performance and reliability gains in core tooling through targeted bug fixes, translating to faster development cycles and fewer build/framing issues. Technologies/skills demonstrated: - Lisp/ACL2, xdoc publication workflow, doc.lisp synchronization, SBCL notes, and manual integration. - Formal verification content management, proof file integration, and documentation for formal books. - Repository restructuring with minimal disruption, and guard/term simplification optimization for trans* processing.
April 2025
6 Commits • 2 Features
Apr 1, 2025April 2025 (acl2/acl2) monthly summary: Delivered foundational improvements to the set theory formalization and reinforced developer onboarding through targeted documentation updates. Key outcomes include expansion of the set-theory library with new theorems on relational and functional composition tied to inverses, refactoring for maintainability, and a purely set-theoretic adaptation of Schroeder-Bernstein. Documentation enhancements across the Schroeder-Bernstein book, workshop READMEs, ACL2 docs, and related references improved clarity and accessibility for current and new contributors. These efforts strengthen proof reliability, accelerate future work, and enable smoother collaboration across projects.
6 Commits • 2 Features
Apr 1, 2025April 2025 (acl2/acl2) monthly summary: Delivered foundational improvements to the set theory formalization and reinforced developer onboarding through targeted documentation updates. Key outcomes include expansion of the set-theory library with new theorems on relational and functional composition tied to inverses, refactoring for maintainability, and a purely set-theoretic adaptation of Schroeder-Bernstein. Documentation enhancements across the Schroeder-Bernstein book, workshop READMEs, ACL2 docs, and related references improved clarity and accessibility for current and new contributors. These efforts strengthen proof reliability, accelerate future work, and enable smoother collaboration across projects.
April 2025
March 2025
10 Commits • 2 Features
Mar 1, 2025March 2025 monthly summary for acl2/acl2 focused on stabilizing runtime behavior, improving documentation and onboarding for Workshop 2025, and strengthening the set-theory library with broader default coverage while ensuring certification scope is well-defined across ACL2 releases.
March 2025
10 Commits • 2 Features
Mar 1, 2025March 2025 monthly summary for acl2/acl2 focused on stabilizing runtime behavior, improving documentation and onboarding for Workshop 2025, and strengthening the set-theory library with broader default coverage while ensuring certification scope is well-defined across ACL2 releases.
February 2025
7 Commits • 2 Features
Feb 1, 2025February 2025 monthly summary for acl2/acl2: Delivered user-focused documentation improvements clarifying unsoundness risks when exiting ACL2 loops and the implications of running raw Lisp after exit; implemented GCL 2.7.0 compatibility fixes to address argument limits, refined readtable handling, and silenced compiler notes; enhanced the build system with a new workshop target and addressed a failing ACL2 regression by temporarily removing a problematic book. These changes tighten session integrity, reduce upgrade risk, and lay groundwork for smoother onboarding and regression resilience.
7 Commits • 2 Features
Feb 1, 2025February 2025 monthly summary for acl2/acl2: Delivered user-focused documentation improvements clarifying unsoundness risks when exiting ACL2 loops and the implications of running raw Lisp after exit; implemented GCL 2.7.0 compatibility fixes to address argument limits, refined readtable handling, and silenced compiler notes; enhanced the build system with a new workshop target and addressed a failing ACL2 regression by temporarily removing a problematic book. These changes tighten session integrity, reduce upgrade risk, and lay groundwork for smoother onboarding and regression resilience.
February 2025
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Quality Metrics
Correctness95.6%
Maintainability93.6%
Architecture91.6%
Performance90.0%
AI Usage21.2%
Skills & Technologies
Programming Languages
ACL2BashCommon LispHTMLLispMakefileMarkdownShellTeXText
Technical Skills
ACL2Academic PublishingAlgorithm AnalysisBug FixingBuild AutomationBuild System ConfigurationBuild System ManagementBuild SystemsCode MaintenanceCode OptimizationCode RefactoringCommon LispCompiler DevelopmentCompiler InternalsCompiler Optimization
Repositories Contributed To
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