Updates TODO and docs

1 files changed, 21 insertions, 5 deletions

diff --git a/TODO.md b/TODO.md
index a1b04c9..c5b5a87 100644
--- a/TODO.md
+++ b/TODO.md
@@ -19,11 +19,27 @@
   * [ ] By detecting the `lang` YAML parameters and using templates from
         `templates/{book,notes}/$lang`.
   * [ ] Setup a PO-file workflow for translating the templates.
-* [ ] Suport for a `BASE_URL` environment variable?
-      It would be applied as a template variable in `%%base_url%%` placeholers,
-      allowing the compile material to have links among themselves.
-* [ ] Optionally add a small reference to the Bookup website in the book
-      frontmatter?
+* [ ] Formats:
+  * [ ] Fix the EPUB output:
+        https://bookdown.org/yihui/bookdown/e-books.html
+        https://github.com/rstudio/bookdown/issues/1179
+        https://github.com/rstudio/bookdown/issues/1387
+        https://github.com/rstudio/bookdown/blob/main/NEWS.md#major-changes
+  * [ ] ZIM format using the `zim-tools` package for the book and the notes.
+  * [ ] Update the current available output formats.
+* [ ] Backmatter:
+  * [ ] Customized lists of definitions, hypothesis, etimologies, examples etc in the PDF version:
+        https://tex.stackexchange.com/questions/180747/editing-format-of-list-of-theorems-in-thmtools
+        https://tex.stackexchange.com/questions/16494/generating-lists-of-custom-environment
+  * [ ] Lists of definitions, hypothesis, etimologies, examples etc in the HTML version.
+        Possible implementations:
+        https://stackoverflow.com/questions/40735727/create-index-of-definitions-theorems-at-end-of-bookdown-book?rq=4
+* [ ] Misc:
+  * [ ] Suport for a `BASE_URL` environment variable?
+        It would be applied as a template variable in `%%base_url%%` placeholers,
+        allowing the compile material to have links among themselves.
+  * [ ] Optionally add a small reference to the Bookup website in the book
+        frontmatter?
 
 ## Documentation