reserved names + coc (#65)

* reserved names + coc

* Document why package collisions need to be avoided

_quarto.yml

@@ -28,6 +28,7 @@ book:
         - publish/set-up.qmd
         - publish/metadata.qmd
         - publish/debug-build.qmd
+        - publish/terms.qmd
         - publish/other-networks.qmd
 lightbox: true
 format:

publish/terms.qmd

@@ -0,0 +1,48 @@
+---
+title: "Package publishing rules"
+---
+
+## Avoid name collisions
+
+While it is technically possible to host a fork or completely different package with the same name in a universe,
+we strongly recommend your **not** doing it.
+
+- An user might mistakenly install the `example` package from CRAN rather than the version from an universe.
+R will automatically overwrite one package with the other when running `install.packages()` or `update.packages()`.
+- It becomes even trickier when other packages import the package.
+
+Therefore, when two packages have the same name, and one of them is on CRAN, R-universe: 
+- treats the one that is on CRAN as the official version. 
+- warns users against the duplication on the page of the other package. 
+
+## Reserved names
+
+The following names should be avoided as package name because `https://username.r-universe.dev/{pkg}/` has special meaning:
+
+-  api 
+-  apis 
+-  articles 
+-  badges 
+-  bin 
+-  builds 
+-  citation 
+-  contributors 
+-  datasets 
+-  docs 
+-  favicon.ico 
+-  feed.xml 
+-  index.xml 
+-  manual 
+-  packages 
+-  readme 
+-  robots.txt 
+-  sitemap_index.xml 
+-  sitemap.xml 
+-  src 
+-  stats
+
+## Code of Conduct
+
+Maintainers of universes are solely responsible for their projects.
+
+The R-universe project itself is governed by the [rOpenSci code of conduct](https://ropensci.org/code-of-conduct/).