Skip to content

Navigation Menu

Appearance settings

View all features
- BY COMPANY SIZE
  Enterprises
  Small and medium teams
  Startups
  Nonprofits
- BY USE CASE
  App Modernization
  DevSecOps
  DevOps
  CI/CD
  View all use cases
- BY INDUSTRY
  Healthcare
  Financial services
  Manufacturing
  Government
  View all industries
View all solutions
- EXPLORE BY TOPIC
  AI
  Software Development
  DevOps
  Security
  View all topics
- EXPLORE BY TYPE
  Customer stories
  Events & webinars
  Ebooks & reports
  Business insights
  GitHub Skills
- SUPPORT & SERVICES
  Documentation
  Customer support
  Community forum
  Trust center
  Partners
- COMMUNITY
  GitHub SponsorsFund open source developers
- PROGRAMS
  Security Lab
  Maintainer Community
  Accelerator
  Archive Program
- REPOSITORIES
  Topics
  Trending
  Collections
- ENTERPRISE SOLUTIONS
  Enterprise platformAI-powered developer platform
- AVAILABLE ADD-ONS
  GitHub Advanced SecurityEnterprise-grade security features
  Copilot for BusinessEnterprise-grade AI features
  Premium SupportEnterprise-grade 24/7 support
Pricing

Search code, repositories, users, issues, pull requests...

Search syntax tips

Provide feedback

Saved searches

Use saved searches to filter your results more quickly

Appearance settings

You signed in with another tab or window. Reload to refresh your session. You signed out in another tab or window. Reload to refresh your session. You switched accounts on another tab or window. Reload to refresh your session.

Dismiss alert

youngde811 Follow

Overview Repositories 12 Projects 0 Packages 0 Stars 19

More

Overview
Repositories
Projects
Packages
Stars

youngde811

Follow

💭

Working on Lisa

David Young youngde811

💭

Working on Lisa

Follow

Senior Software Engineer.

15 followers · 9 following

Achievements

Achievements

Block or report youngde811

Report abuse

Contact GitHub support about this user’s behavior. Learn more about reporting abuse.

Overview Repositories 12 Projects 0 Packages 0 Stars 19

More

Overview
Repositories
Projects
Packages
Stars

Pinned Loading

Lisa Lisa Public

A production-quality expert-system shell, written in thoroughly modern Common Lisp.

Common Lisp 128 10

Something went wrong, please refresh the page to try again.
If the problem persists, check the GitHub status page or contact support.

Uh oh!

There was an error while loading. Please reload this page.

Footer

© 2025 GitHub, Inc.

Footer navigation

Terms
Privacy
Security
Status
Community
Docs
Contact

You can’t perform that action at this time.