What else we can do

Optional directions for the DSA + System Design mind-map repo. Pick what matches your goal (interview speed, teaching, team use, or long-term maintenance). Nothing here is required for the current notes-first setup to stay valid.

Automation and CI

Idea	Why
GitHub Actions	Run `npm run docs:check-dsa` on every PR so broken frontmatter and internal links never merge.
Link checker in CI	Fail if internal `.md` links break after refactors (small Python or `lychee`-style tool).
Pre-commit hook	Run validation locally before commit; optional auto-run `npm run docs:sync-dsa` when DSA source files changed.
Scheduled snapshot	Nightly workflow that opens a PR only when counts drift (optional; noisy if content churn is low).

Learning and recall (beyond static markdown)

Idea	Why
Spaced-repetition deck export	Script to emit CSV/Anki from `## Mind-Map Tags` + title → drill recognition cues only.
“Redo deck” file	Maintain `study/redo-queue.md` listing LC numbers you missed cold; regenerate from git blame or manual checkboxes.
Difficulty progression paths	Markdown maps per topic: Easy → Medium → Hard chains with explicit “unlock” links (already partly in patterns).
One-page cheat PDF	Pandoc build from `cheatsheets/` + pattern index for print/offline.

Content expansion

Idea	Why
Align PROBLEM_INDEX with disk	Automated diff: index rows vs `topics/**` filenames; script reports missing or orphaned files.
Company-tag consistency	Normalize “Companies” lines across problems for targeted grind lists (Google-heavy DP, etc.).
More SD case studies	Multi-region, cron at scale, CDC pipelines — same HLD template as existing `system-design/hld/`.
Behavioral story bank	Expand `interview-prep/` with outline-only STAR templates per LP (no fabricated stories).

Runnable code (departs from pure notes — optional)

Idea	Why
`solutions/go` + `solutions/js`	Package per LC number with `go test` / `npm test` — catches snippet drift; heavier maintenance.
leetcode-runner shim	Thin CLI that copies snippet into LC-shaped stubs for quick paste-test (personal tooling).

Idea	Why
MkDocs / VitePress / Docusaurus	Sidebar by topic, full-text search, deploy to GitHub Pages for browser study.
Unified tag index	Generate `TAG_INDEX.md` from `## Mind-Map Tags` lines (`rg`-friendly backup already exists).
`CHANGELOG.md` for content	Human-readable log when bulk problems land (teaching cohorts).

Team and teaching

Idea	Why
CONTRIBUTING.md	PR checklist: template, diagram rule, `npm run docs:sync-dsa`, and `npm run docs:check-dsa`.
Weekly cohort agenda	Markdown templates under `study/cohorts/` (Week N objectives + problem IDs).
Fork-friendly branding	Neutralize paths if others fork (optional LICENSE file + short attribution line).

Quality and accessibility

Idea	Why
Mermaid lint	Catch invalid diagrams before merge (some CI integrations support this).
Alt text / captions	Short line under each diagram for screen readers if you publish HTML.
Docs visual enrichment pass	Use Docs visual enrichment workflow to add diagrams where pages require mental simulation of states, flows, or tradeoffs.
Consistency pass on “At a Glance”	Normalize Frequency and Companies format across older files.

Quick wins (low effort, high clarity)

Add GitHub Actions only for npm run docs:check-dsa.
Add CONTRIBUTING.md pointing at problem-template.md, diagram rule, and npm run docs:sync-dsa.
Add a scripts/diff-index-vs-disk.py that compares PROBLEM_INDEX.md table to actual files (report-only).

Suggested order if you only do three things next

CI validation — protects 16-section + diagram discipline.
CONTRIBUTING.md — saves you explaining rules every time.
Index vs disk diff script — keeps PROBLEM_INDEX.md honest as you grow.

See also: Archived implementation plan (original scope and Phase 2 notes).