move to deparate adr folder

adr/ADR-001-repository-name.md

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+# ADR-001: Use `ota-reference-design` as the Repository Name
+
+* **Status:** Accepted
+* **Date:** 2026-07-29
+
+## Context
+
+The project requires a repository name that communicates its purpose clearly without tying the design to a single hardware platform, implementation language, or update framework.
+
+The repository will contain:
+
+* architectural documentation;
+* OTA design decisions;
+* diagrams;
+* reference implementations;
+* update tooling;
+* failure-injection experiments;
+* security and reliability analysis.
+
+The initial practical implementation may use Raspberry Pi hardware, but the overall design should remain applicable to other embedded Linux platforms.
+
+The repository is not intended to provide a production-ready OTA framework or a reusable software library. Its primary purpose is to demonstrate and explain the architecture of a reliable and secure OTA update system.
+
+## Decision
+
+The repository will be named:
+
+```text
+ota-reference-design
+```
+
+The repository will initially remain a standalone top-level repository rather than being placed under a broader group such as `engineering`, `embedded-systems`, or `systems-engineering`.
+
+## Alternatives Considered
+
+### `embedded-ota-lab`
+
+This name emphasizes experimentation and practical work.
+
+It was not selected because the project will contain more than experiments. It will also document architecture, security, reliability, design decisions, and implementation trade-offs.
+
+### `ota-update-lab`
+
+This name is simple but somewhat redundant because OTA already means over-the-air updating.
+
+It also makes the project sound more like a temporary collection of experiments than a structured reference design.
+
+### `reliable-ota`
+
+This name emphasizes one of the primary goals of the project.
+
+It was not selected because it does not clearly communicate that the repository is educational and architectural rather than a production-ready OTA product.
+
+### A Repository Under an `engineering` Group
+
+A broader parent group could eventually contain several related repositories.
+
+It was not selected at this stage because a group containing only one repository adds unnecessary hierarchy and does not yet provide meaningful organization.
+
+## Consequences
+
+### Positive
+
+* The name clearly communicates that the project is an OTA reference design.
+* The repository is not tied to Raspberry Pi or any other specific platform.
+* The name allows the project to include documentation, code, diagrams, and experiments.
+* Readers are less likely to mistake the project for a production-ready framework.
+* The name remains appropriate if additional hardware platforms are added later.
+
+### Negative
+
+* The name is broader than the initial Raspberry Pi implementation.
+* Readers may still require the README to understand the exact project scope.
+* The term “reference design” may suggest a more complete implementation than exists during the early stages of development.
+
+## Notes
+
+A broader repository group may be introduced later if several related systems-engineering projects are created.
+
+Possible future group names include:
+
+```text
+embedded-systems
+systems-engineering
+```
+
+Moving the repository into such a group would not require changing the repository name.