--- /dev/null
+# ─── Python Detritus ──────────────────────────────────────────────
+__pycache__/
+*.py[cod]
+*.pyo
+*.pyd
+
+# pytest cache
+.pytest_cache/
+
+# Cython / coverage / profiling
+*.so
+*.gcov
+*.gcda
+*.gcno
+
+# IPython junk
+.ipynb_checkpoints/
+
+# editor backup files (optional)
+*~
+
+# ─── Virtualenv (just in case someone makes one elsewhere) ────────
+venv/
+.venv/
+env/
+ENV/
--- /dev/null
+Copyright (c) 2025 Thomas Walker Lynch.
+All rights reserved.
+
+This source code is made available for inspection only.
+No permission is granted to use, copy, modify, or distribute it in any form without explicit written permission.
--- /dev/null
+# Harmony
+
+**Status:** Source-visible only — not open source.
+
+This repository contains internal development tools, Python environments, and structured workspaces for role-based computation and testing. It reflects standardized RT project conventions for environment entry, tool layering, and reproducible developer/tester workflows.
+
+## Licensing
+
+This project is *not* open source.
+
+The source code is visible for collaboration, transparency, and historical record only. No permission is granted to use, modify, copy, or redistribute any part of the codebase.
+
+See the [`LICENSE`](./LICENSE) file for details.
+
+## Roles
+
+This repository is structured around the following roles:
+- `developer/` — implementation and code testing
+- `tester/` — validation and reproducibility
+- `tool_shared/` — shared tools, environments, and third-party modules
+
+Each role is entered via its respective `env_<role>` script.
+
+
--- /dev/null
+#!/usr/bin/env python3
+
+import os
+import sys
+
+def print_env_var(name):
+ value = os.getenv(name)
+ print(f"{name:<16}: {value if value else '<not set>'}")
+
+def main():
+ print("=== Python Environment Test ===")
+ print(f"Python executable : {sys.executable}")
+ print(f"Python version : {sys.version}")
+ print()
+
+ print("=== Harmony Environment Variables ===")
+ for var in ["ROLE", "REPO_HOME", "PYTHON_HOME", "VIRTUAL_ENV", "ENV"]:
+ print_env_var(var)
+
+ print()
+ print("=== Current Working Directory ===")
+ print(os.getcwd())
+
+if __name__ == "__main__":
+ main()
--- /dev/null
+#!/usr/bin/env bash
+script_afp=$(realpath "${BASH_SOURCE[0]}")
+if [[ "${BASH_SOURCE[0]}" == "$0" ]]; then
+ echo "$script_afp:: This script must be sourced, not executed."
+ exit 1
+fi
+
+export ROLE=developer
+source tool_shared/bespoke🖉/env
+
+if [[ ":$PATH:" != *":$PYTHON_HOME/bin:"* ]]; then
+ export PATH="$PYTHON_HOME/bin:$PATH"
+fi
+
+cd $ROLE
+export ENV=$ROLE
+echo "in environmennt: $ENV"
--- /dev/null
+#!/usr/bin/env bash
+script_afp=$(realpath "${BASH_SOURCE[0]}")
+if [[ "${BASH_SOURCE[0]}" == "$0" ]]; then
+ echo "$script_afp:: This script must be sourced, not executed."
+ exit 1
+fi
+
+export ROLE=tester
+source tool_shared/bespoke🖉/env
+
+if [[ ":$PATH:" != *":$PYTHON_HOME/bin:"* ]]; then
+ export PATH="$PYTHON_HOME/bin:$PATH"
+fi
+
+cd $ROLE
+export ENV=$ROLE
+
--- /dev/null
+#!/usr/bin/env bash
+script_afp=$(realpath "${BASH_SOURCE[0]}")
+if [[ "${BASH_SOURCE[0]}" == "$0" ]]; then
+ echo "$script_afp:: This script must be sourced, not executed."
+ exit 1
+fi
+
+export ROLE=toolsmith
+source tool_shared/bespoke🖉/env
+export ENV=$ROLE
+
--- /dev/null
+# Ignore all files
+*
+
+# But don't ignore the .gitignore file itself
+!.gitignore
--- /dev/null
+#!/usr/bin/env bash
+script_afp=$(realpath "${BASH_SOURCE[0]}")
+if [[ "${BASH_SOURCE[0]}" == "$0" ]]; then
+ echo "$script_afp:: This script must be sourced, not executed."
+ exit 1
+fi
+
+# without this bash takes non-matching globs literally
+shopt -s nullglob
+
+# --------------------------------------------------------------------------------
+# project definition
+
+# actual absolute director path for this script file
+
+ script_adp(){
+ dirname "$script_afp"
+ }
+
+# assume this script is located $REPO_HOME/tools_shared/bespoke and work backwards
+# to get $REPO_HOME, etc.
+
+ REPO_HOME=$(dirname "$(dirname "$(script_adp)")")
+ echo REPO_HOME "$REPO_HOME"
+
+ PROJECT=$(basename "$REPO_HOME")
+ echo PROJECT "$PROJECT"
+
+ # set the prompt decoration to the name of the project
+ PROMPT_DECOR=$PROJECT
+
+ export REPO_HOME PROJECT PROMPT_DECOR
+
+# --------------------------------------------------------------------------------
+# Project wide Tool setup
+#
+
+export VIRTUAL_ENV="$REPO_HOME/tool_shared/third_party/Python"
+export PYTHON_HOME="$VIRTUAL_ENV"
+unset PYTHONHOME
+
+
+# --------------------------------------------------------------------------------
+# PATH
+# precedence: last defined, first discovered
+
+ PATH="$REPO_HOME/tool_shared/third_party/RT-project-share/release/bash:$PATH"
+ PATH="$REPO_HOME/tool_shared/third_party/RT-project-share/release/amd64:$PATH"
+ PATH="$REPO_HOME/tool_shared/third_party:$PATH"
+ PATH="$REPO_HOME/tool_shared/customized:$PATH"
+ PATH="$REPO_HOME"/tool_shared/bespoke🖉:"$PATH"
+
+ # Remove duplicates
+ clean_path() {
+ PATH=$(echo ":$PATH" | awk -v RS=: -v ORS=: '!seen[$0]++' | sed 's/^://; s/:$//')
+ }
+ clean_path
+ export PATH
+
+# --------------------------------------------------------------------------------
+# the following functions are provided for other scripts to use.
+# at the top of files that make use of these functions put the following line:
+# script_afp=$(realpath "${BASH_SOURCE[0]}")
+#
+
+ ## script's filename
+ script_fn(){
+ basename "$script_afp"
+ }
+
+ ## script's dirpath relative to $REPO_HOME
+ script_fp(){
+ realpath --relative-to="${REPO_HOME}" "$script_afp"
+ }
+
+ ## script's dirpath relative to $REPO_HOME
+ script_dp(){
+ dirname "$(script_fp)"
+ }
+
+ export -f script_adp script_fn script_dp script_fp
+
+#--------------------------------------------------------------------------------
+# used by release scripts
+#
+
+ install_file() {
+ if [ "$#" -lt 3 ]; then
+ echo "env::install_file usage: install_file <source1> <source2> ... <target_dir> <permissions>"
+ return 1
+ fi
+
+ perms="${@: -1}" # Last argument is permissions
+ target_dp="${@: -2:1}" # Second-to-last argument is the target directory
+ sources=("${@:1:$#-2}") # All other arguments are source files
+
+ if [ ! -d "$target_dp" ]; then
+ echo "env::install_file no install done: target directory '$target_dp' does not exist."
+ return 1
+ fi
+
+ for source_fp in "${sources[@]}"; do
+ if [ ! -f "$source_fp" ]; then
+ echo "env::install_file: source file '$source_fp' does not exist."
+ return 1
+ fi
+
+ target_file="$target_dp/$(basename "$source_fp")"
+
+ if ! install -m "$perms" "$source_fp" "$target_file"; then
+ echo "env::install_file: Failed to install $(basename "$source_fp") to $target_dp"
+ return 1
+ else
+ echo "env::install_file: installed $(basename "$source_fp") to $target_dp with permissions $perms"
+ fi
+ done
+ }
+
+ export -f install_file
+
+# --------------------------------------------------------------------------------
+# closing
+#
+ if [[ -z "$ENV" ]]; then
+ export ENV=$(script_fp)
+ fi
+
--- /dev/null
+#!/bin/env bash
+script_afp=$(realpath "${BASH_SOURCE[0]}")
+
+echo "Harmony v0.1 2025-05-19"
+
--- /dev/null
+#+TITLE: Installing Python in Harmony
+#+AUTHOR: Thomas Walker Lynch
+#+OPTIONS: toc:2 num:nil
+
+* Overview
+
+This document describes how to install a project-local Python environment under:
+
+#+begin_src bash
+tool_shared/third_party/Python
+#+end_src
+
+This environment is shared across the =developer= and =tester= roles and is automatically activated through their respective =env_<role>= scripts.
+
+* Precondition
+
+Ensure the following:
+
+- You are in a POSIX shell with =python3= installed.
+- The =python3-venv= package is available (on Debian: =sudo apt install python3-venv=).
+- You have sourced the Harmony environment via =env_toolsmith= to initialize =REPO_HOME= and related variables.
+
+* Step-by-Step Installation
+
+1. Source the Harmony environment:
+ #+begin_src bash
+ source env_toolsmith
+ #+end_src
+
+2. Create the virtual environment:
+ #+begin_src bash
+ python3 -m venv "$REPO_HOME/tool_shared/third_party/Python"
+ #+end_src
+
+3. Activate it temporarily to install required packages:
+ #+begin_src bash
+ source "$REPO_HOME/tool_shared/third_party/Python/bin/activate"
+ pip install --upgrade pip
+ pip install pytest # Add any shared packages here
+ deactivate
+ #+end_src
+
+4. Rename Python's default activate and deactivate:
+ Harmony provides its own role-aware environment management. Using Python’s default activation scripts may interfere with prompt logic, PATH order, and role-specific behavior.
+
+ Disable the default scripts by renaming them:
+ #+begin_src bash
+ mv "$REPO_HOME/tool_shared/third_party/Python/bin/activate" \
+ "$REPO_HOME/tool_shared/third_party/Python/bin/activate_deprecated"
+ #+end_src
+
+ This ensures that accidental sourcing of Python’s =activate= script won't override Harmony's environment setup.
+
+5. Verify installation:
+ #+begin_src bash
+ ls "$REPO_HOME/tool_shared/third_party/Python/bin/python3"
+ #+end_src
+
+ The binary should exist and report a working Python interpreter when run.
+
+* Notes
+
+- The virtual environment is deliberately named =Python=, not =venv=, to reflect its role as a shared system component.
+- Harmony environment scripts define and control =VIRTUAL_ENV=, =PYTHON_HOME=, and =PATH=, making Python activation seamless and uniform.
+- There is no need to use Python’s =bin/activate= directly — it is fully replaced by Harmony’s environment logic.
+
+* Related Files
+
+- =tool_shared/bespoke🖉/env=
+- =tool_shared/bespoke🖉/env_source=
+- =env_developer=, =env_tester=, =env_toolsmith=
+
+* Last Verified
+
+2025-05-19 :: Activate/deactivate renamed post-install. Requires Harmony environment sourcing prior to execution.
--- /dev/null
+# Ignore all files
+*
+
+# But don't ignore the .gitignore file itself
+!.gitignore