pi_mcps/plans/REPO_STRATEGY.md

Monorepo Strategy — Patrick's Homelab Workshop

Written: 2026-04-04 | Authors: Patrick + Lumen

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1. Why This Document Exists

The repo started as pi_mcps — a home for Python MCP servers. Then two older Java web projects arrived: mss-failsafe and Wellmann-Shop. This is not an accident — it's the beginning of a pattern: a single place to keep all of Patrick's personal engineering work, regardless of language.

This document defines the strategy for the repo so that both of us — human and AI — can navigate it without confusion now and in two years from now.

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2. Philosophy: Polyglot Monorepo, Not a Dump

A monorepo is not code colocation. The key principle from monorepo.tools: projects must have well-defined relationships and clear boundaries. What we are building is closer to a workshop — a curated collection of distinct tools and projects under one roof, organized by language/purpose, each independently buildable and deployable.

We are NOT:

• Sharing dependencies across Java and Python (they live in entirely separate ecosystems)
• Using a monorepo build tool like Nx or Turborepo (overkill for a personal homelab)
• Creating a monolith (each project is independently deployable)

We ARE:

• Keeping one git history (single place to look for all changes)
• Using a clear directory taxonomy to signal what kind of thing each project is
• Making it easy for an AI (Lumen) or a new contributor to orient quickly
• Preventing repo sprawl — one Gitea repo instead of a dozen

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3. Repo Rename: pi_mcps → workshop

The name pi_mcps no longer describes what the repo contains. It was named for Raspberry Pi MCP servers — neither of which is accurate anymore (Fedora homelab, not Pi; more than just MCP servers).

Proposed new name: workshop

Why workshop?

• Neutral, language-agnostic
• Conveys personal creative output (not corporate, not framework-specific)
• Short, memorable
• Maps well to http://192.168.188.119:30008/pplate/workshop

Action required:

1. Rename the Gitea repo at http://192.168.188.119:30008/pplate/pi_mcps → workshop
2. Update the local remote: git remote set-url origin http://192.168.188.119:30008/pplate/workshop.git
3. The local folder on disk can stay as ~/pi_mcps/ or be renamed to ~/workshop/ — Patrick's choice. The folder name and repo name do not need to match.

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4. Directory Taxonomy

Every directory at the repo root belongs to one of three categories:

Category	Directory	Purpose
Language group	mcp/	Python MCP servers — FastMCP, uv, pytest
Language group	java/	Java web projects — Maven, Jakarta EE
Tooling/Config	.roo/	IDE config, Roo mode rules, MCP wiring
Tooling/Config	plans/	Architecture plans, assessments, strategy docs
Root files	README.md, .gitignore	Navigation index + polyglot ignores

Future language groups (when they arrive):

Directory	Purpose
ts/	TypeScript MCP servers or web frontends
go/	Go utilities or services
scripts/	Shell/Python one-off automation

4.1 Full Target Structure

workshop/
├── mcp/                        # Python MCP servers
│   ├── bigmind/                # BigMind persistent memory server
│   │   ├── src/server.py
│   │   ├── bigmind/            # library code
│   │   ├── tests/
│   │   ├── pyproject.toml
│   │   └── run.sh
│   └── webscraper/             # Web scraping MCP server
│       ├── src/server.py
│       ├── tests/
│       ├── pyproject.toml
│       └── run.sh
│
├── java/                       # Java web projects
│   ├── mss-failsafe/           # MSS Failsafe (Java EE multi-module, WildFly)
│   │   ├── mssfailsafeWeblayer/
│   │   ├── userManagement/
│   │   └── pom.xml
│   └── wellmann-shop/          # Wellmann Shop (JSF/PrimeFaces, Java 8, MySQL)
│       ├── src/
│       └── pom.xml
│
├── plans/                      # Architecture plans and strategy docs
│   └── REPO_STRATEGY.md        # this file
│
├── .roo/                       # Roo Code IDE configuration
│   ├── mcp.json                # MCP server wiring (paths updated post-move)
│   └── rules-*/                # Per-mode Roo rules
│
├── .gitignore                  # Polyglot: Python + Java + Node + OS
└── README.md                   # Navigation index (the front door)

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5. Naming Conventions

Consistency matters — both for humans and for AI tools reading directory listings.

Rule	Convention	Rationale
Directory names	kebab-case	Unix-friendly, consistent across all languages
Java project dirs	kebab-case matching Maven artifactId	No surprise mapping needed
Python package dirs	kebab-case at group level, snake_case inside for Python modules	PEP 8 inside, Unix outside
Plan files	UPPER_SNAKE.md in plans/	Stands out from code files
README per project	Required	Each project is independently comprehensible

Normalization needed:

• Wellmann-Shop/ → java/wellmann-shop/ (lowercase the W, move under java/)
• mss-failsafe/ → java/mss-failsafe/ (already correct name, just needs moving)
• bigmind/ → mcp/bigmind/
• webscraper/ → mcp/webscraper/

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6. Language-Specific Rules

6.1 Python (mcp/)

• Package manager: uv (already standardized)
• Framework: FastMCP for all MCP servers
• Testing: pytest with pytest-mock and pytest-cov
• Each server is an independent Python package with its own pyproject.toml and .venv
• No shared requirements.txt at root — dependency isolation is a feature
• Run pattern: cd mcp/bigmind && ./run.sh

6.2 Java (java/)

• Build tool: Maven (both existing projects use it)
• Java version: Currently Java 8 (Wellmann-Shop) and unspecified (mss-failsafe — legacy NetBeans project)
• Future Java projects should target Java 21+ (current LTS)
• Each project has its own pom.xml — no shared parent POM at root (cross-language root POMs are an antipattern)
• Target servers: WildFly / Payara / GlassFish (Jakarta EE)
• No shared Maven settings.xml needed — use standard ~/.m2/settings.xml

6.3 Future: TypeScript (ts/)

• Package manager: npm or pnpm
• Framework: FastMCP (TypeScript flavor) for MCP servers
• Each project has its own package.json

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7. .gitignore Strategy

The root .gitignore must cover all languages in the repo. Currently it only covers Python. After the reorganization, it must also cover:

To add:

# Java / Maven
target/
*.class
*.war
*.jar
*.ear
*.nar
.classpath
.project
.settings/
nb-configuration.xml
nbactions.xml
*.iml

# Node / TypeScript (future)
node_modules/
dist/
*.js.map
package-lock.json

# Test coverage
.coverage
coverage.xml
htmlcov/

Note: nb-configuration.xml is NetBeans IDE config — already present in mss-failsafe/ and Wellmann-Shop/. It should be in .gitignore for new projects but is intentionally tracked here since it carries build configuration for legacy projects.

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8. IDE Wiring: .roo/mcp.json After Move

The webscraper path in .roo/mcp.json currently points to /home/pplate/pi_mcps/webscraper. After moving to mcp/webscraper/, it must be updated:

Before:

"webscraper": {
  "args": ["run", "--directory", "/home/pplate/pi_mcps/webscraper", "src/server.py"]
}

After:

"webscraper": {
  "args": ["run", "--directory", "/home/pplate/pi_mcps/mcp/webscraper", "src/server.py"]
}

(If the local folder is also renamed to workshop/, the path changes to /home/pplate/workshop/mcp/webscraper)

The same applies to any external MCP configs (e.g., IntelliJ/PyCharm mcp.json files stored outside this repo).

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9. README.md — The Front Door

The root README.md should function as a navigation index, not a tutorial. Readers (Patrick, Lumen, future contributors) should land there and know exactly where to go within 10 seconds.

Structure:

# Workshop — Patrick Plate's Homelab Monorepo

## What's Here
[table: project name | language | description | status]

## MCP Servers (mcp/)
[short list with links]

## Java Projects (java/)
[short list with links]

## Plans & Architecture
[link to plans/]

## Gitea
[link to homelab Gitea]

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10. Migration Plan (Ordered Steps)

Step 1: Rename Gitea repo pi_mcps → workshop (Gitea UI)
Step 2: Update local git remote URL
Step 3: Move mcp/bigmind ← bigmind/
Step 4: Move mcp/webscraper ← webscraper/
Step 5: Move java/mss-failsafe ← mss-failsafe/
Step 6: Move java/wellmann-shop ← Wellmann-Shop/ (normalize name)
Step 7: Update .roo/mcp.json webscraper path
Step 8: Update any external MCP configs pointing to old paths
Step 9: Expand .gitignore with Java + Node patterns
Step 10: Rewrite root README.md as navigation index
Step 11: git add -A && git commit -m "chore: reorganize into polyglot monorepo structure"
Step 12: git push origin master

Important: Git tracks renames as move+add. Using git mv preserves file history. Use it for each moved file/directory.

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11. What We Are NOT Doing

It's worth being explicit about choices we considered and rejected:

Considered	Decision	Reason
Separate repo per project	Rejected	Polyrepo tax: fragmented history, harder for AI context
Nx / Turborepo monorepo tools	Rejected	Overkill for personal homelab; adds tooling complexity without benefit
Shared Maven parent POM at root	Rejected	Java-specific tooling at repo root would confuse Python tooling
Keeping pi_mcps name	Reconsidered	The name no longer describes the content; workshop is future-proof
src/ at root with language subdirs	Rejected	Less clear at a glance than top-level mcp/, java/ groupings

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12. Visual Overview

graph TD
    Root[workshop/] --> MCP[mcp/]
    Root --> Java[java/]
    Root --> Plans[plans/]
    Root --> Roo[.roo/]
    Root --> GI[.gitignore]
    Root --> RM[README.md]

    MCP --> BM[bigmind/]
    MCP --> WS[webscraper/]
    MCP --> FutMCP[future MCP servers...]

    Java --> MSS[mss-failsafe/]
    Java --> WSh[wellmann-shop/]
    Java --> FutJava[future Java projects...]

    Plans --> STRAT[REPO_STRATEGY.md]
    Plans --> FutPlans[future plans...]

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This document is the living reference for how this repo is organized. Update it when structure changes.