Added information how to archive a project

docs/tipsandtricks.md

@@ -2,6 +2,88 @@
 
 This chapter contains useful information to help you solve specific issues.
 
+## Archive a project
+
+For a completed Open-CMSIS-Pack project using CMSIS-Toolbox and the CMSIS Solution project format, you should archive
+everything necessary to rebuild, debug, verify, and maintain the firmware independently of the original development
+environment.
+
+### What should be archived
+
+| Artifact                     | Examples                                               | Recommendation                                            |
+| ---------------------------- | ------------------------------------------------------ | --------------------------------------------------------- |
+| CMSIS solution configuration | `*.csolution.yml`                                      | Mandatory                                                 |
+| CMSIS project configuration  | `*.cproject.yml`                                       | Mandatory                                                 |
+| Build configurations         | `*.cbuild.yml`, `*.cbuild-idx.yml`                     | Archive the resolved configurations                       |
+| Source code                  | `*.c`, `*.cpp`, `*.h`, assembly                        | Mandatory                                                 |
+| Linker configuration         | Scatter files, linker scripts                          | Mandatory                                                 |
+| RTE configuration            | `RTE/`, `RTE_Components.h`, configured component files | Mandatory                                                 |
+| Generator configuration      | `*.cgen.yml`, generator inputs and outputs             | Archive when applicable                                   |
+| CMSIS-Pack dependencies      | DFPs, BSPs, software component packs                   | Archive exact `.pack` versions                            |
+| Pack lock information        | `*.cbuild-pack.yml`                                    | Mandatory for dependency traceability                     |
+| Compiler and build tools     | Arm Compiler, GCC, LLVM, CMSIS-Toolbox                 | Record exact versions; preserve installers where possible |
+| Generated firmware           | `*.elf`, `*.hex`, `*.bin`                              | Mandatory for released firmware                           |
+| Debug information            | ELF with DWARF, map files                              | Strongly recommended                                      |
+| Test and validation results  | Test reports, coverage, analysis results               | Mandatory for formal releases                             |
+| Documentation                | README, requirements, release notes                    | Strongly recommended                                      |
+| Version-control metadata     | Git commit, tag, submodule revisions                   | Mandatory                                                 |
+
+!!! Note
+    Files such as `*.cbuild.yml` and `*.cbuild-idx.yml` are generated by CMSIS-Toolbox. They are
+    useful as records of the resolved build configuration, but they are not substitutes for the original solution and
+    project definitions.
+
+### Preserve the complete dependency chain
+
+A CMSIS project may depend on software components from multiple vendors. Merely preserving their names and version
+numbers is insufficient if the original pack repositories become unavailable.
+
+For long-term reproducibility, preserve:
+
+- The exact CMSIS-Pack archives (`.pack`) used in the build, including transitive dependencies.
+- The compiler version and relevant toolchain binaries or installers.
+- The CMSIS-Toolbox version, including `cbuild`, `csolution`, and associated utilities.
+- Any external code generators, their configurations, and required runtime dependencies.
+- Custom scripts, environment settings, and CI/CD configuration.
+
+For commercial compilers, licensing and redistribution restrictions may prevent archiving a fully portable toolchain.
+At minimum, preserve the version, build identification, installation source, and license requirements.
+
+### Recommended archive structure
+
+It is good practice to separate the editable project, its dependencies, and the release evidence:
+
+📁 MyFirmware-1.0.0/  
+╠ 📁 project/ — Source code, solution files, layers, RTE configuration  
+╠ 📁 packs/ — Exact `.pack` dependencies  
+╠ 📁 toolchain/ — Tool versions, manifests, installers where permitted  
+╠ 📁 firmware/ — ELF, HEX, BIN and map files  
+╠ 📁 verification/ — Test reports, analysis results, build logs  
+╠ 📁 documentation/ — Release notes, build instructions, SBOM  
+╚ 📄 manifest.yml — Versions, hashes, Git revision, build environment  
+
+Include a SHA-256 checksum for each released binary and ideally for all archived dependencies.
+
+### Verify that the archive is reproducible
+
+Before declaring the archive complete, rebuild the firmware in a clean environment.
+
+CMSIS-Toolbox supports the `--frozen-packs` option, which checks the pack dependencies against `*.cbuild-pack.yml` and
+prevents unintended changes to the resolved pack set.
+
+```sh
+cbuild MyFirmware.csolution.yml \
+  --frozen-packs \
+  --rebuild
+```
+
+This command assumes that all required packs and toolchains are already installed. It does not itself guarantee
+bit-for-bit identical binaries. For that, compare the resulting firmware with the archived release and investigate
+differences caused by timestamps, build paths, compiler settings, or other nondeterministic inputs.
+
+!!! Note
+    It is recommended to commit the solution inputs, all RTE files, and `*.cbuild-pack.yml` to version control.
+
 ## Create vcpkg configuration file
 
 If your solution does not contain a `vcpkg-configuration.json` file, click on