about/archival: Add a page mentioning archival locations for Haiku

* We may want to extend this to include information about backups?

content/about/archival.md

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+type = "article"
+title = "Archival"
+date = "2009-09-09T21:27:31.000Z"
+tags = ["security", "archival", "backups"]
++++
+
+# Source Code Archival
+
+Haiku's source code represents hundreds of thousands of hours of work by individuals across the globe.
+To protect their investment, Haiku reguraly ensures multiple copies of these critical source code
+repositories exist in multiple locations at all times.
+
+## Hot Repositories
+
+> These are source code repositories which represent the latest source code of Haiku
+
+* Haiku's core infrastructure
+  * Contains the absolute latest source code of [haiku](https://git.haiku-os.org/haiku/) and [buildtools](https://git.haiku-os.org/buildtools/).
+  * Servers physically located in Amsterdam
+* Github
+  * Home of support codebases such as [haikuports](https://github.com/haikuports/haikuports), [haikuporter](https://github.com/haikuports/haikuporter), [Haiku's infrastructure](https://github.com/haiku/infrastructure), and other tools.
+
+## Warm Repositories
+
+> These are source code repositories which represent continuous copies of Haiku's source code at regular intervals.
+
+* Github
+  * Receives hourly replications of Haiku's [source code](https://github.com/haiku/haiku) and [buildtools](https://github.com/haiku/buildtools).
+* Developer workstations
+  * Developers all over the world have local copies of the Haiku repositories on their desktops/laptops/workstations
+
+## Cold Repositories
+
+> These are source code repositories which receive occasional updates, and are generally more complex to restore.
+
+* [Software Heritage Archive](https://archive.softwareheritage.org/browse/search/?q=https%3A%2F%2Fgithub.com%2Fhaiku%2F)
+  * This group accepts requests to periodically archive git repositories for long-term archival.
+* [Github Artic Vault](https://archiveprogram.github.com/)
+  * In 2019, Github began a yearly program to archive public repositories in an Artic Vault on [piql](https://www.piql.com) film.
+  * Haiku's code was included as part of this archival and was first deposited in mid-2020.