diff --git a/rust-intro.org b/rust-intro.org
index a53354e..44090ae 100644
--- a/rust-intro.org
+++ b/rust-intro.org
@@ -481,25 +481,25 @@
    \tiny
 |                     | \rotatebox{90}{Syntax highlightning (.rs)} | \rotatebox{90}{Syntax highlightning (.toml)} | \rotatebox{90}{Snippets} | \rotatebox{90}{Code Completion} | \rotatebox{90}{Linting} | \rotatebox{90}{Code Formatting} | \rotatebox{90}{Go-to Definiton} | \rotatebox{90}{Debugging} | \rotatebox{90}{Documentation Tooltips} |
 |---------------------+--------------------------------------------+----------------------------------------------+--------------------------+---------------------------------+-------------------------+---------------------------------+---------------------------------+---------------------------+----------------------------------------|
-| Atom                | [X]                                        | [X]                                          | [X]                      | [X]                             | [X]                     | [X]                             | [X]                             |                           | [X]                                    |
-| Emacs               | [X]                                        | [X]                                          | [X]                      | [X]                             | [X]                     | [X]                             | [X]                             |                           | [X]                                    |
-| Sublime             | [X]                                        | [X]                                          | [X]                      | [X]                             | [X]                     | [X]                             | [X]                             |                           |                                        |
-| Vim/Neovim          | [X]                                        | [X]                                          | [X]                      | [X]                             | [X]                     | [X]                             | [X]                             |                           | [X]                                    |
-| VS Code             | [X]                                        | [X]                                          | [X]                      | [X]                             | [X]                     | [X]                             | [X]                             | [X]                       | [X]                                    |
-| BBedit              | [X]                                        | [X]                                          | [X]                      |                                 |                         | [X]                             | [X]                             |                           |                                        |
-| Geany               | [X]                                        |                                              |                          |                                 |                         |                                 |                                 |                           |                                        |
-| gedit               | [X]                                        |                                              |                          | [X]                             |                         |                                 | [X]                             |                           |                                        |
-| Kakoune             | [X]                                        | [X]                                          | [X]                      | [X]                             | [X]                     | [X]                             | [X]                             |                           | [X]                                    |
-| Kate                | [X]                                        | [X]                                          |                          | [X]                             | [X]                     | [X]                             | [X]                             |                           |                                        |
-| Micro               | [X]                                        | [X]                                          |                          |                                 | [X]                     | [X]                             |                                 |                           |                                        |
-| Midnight Commander  | [X]                                        |                                              |                          |                                 |                         |                                 |                                 |                           |                                        |
-| Textadept           | [X]                                        | [X]                                          | [X]                      | [X]                             | [X]                     |                                 | [X]                             |                           |                                        |
+| Atom                | X                                        | X                                          | X                      | X                             | X                     | X                             | X                             |                           | X                                    |
+| Emacs               | X                                        | X                                          | X                      | X                             | X                     | X                             | X                             |                           | X                                    |
+| Sublime             | X                                        | X                                          | X                      | X                             | X                     | X                             | X                             |                           |                                        |
+| Vim/Neovim          | X                                        | X                                          | X                      | X                             | X                     | X                             | X                             |                           | X                                    |
+| VS Code             | X                                        | X                                          | X                      | X                             | X                     | X                             | X                             | X                       | X                                    |
+| BBedit              | X                                        | X                                          | X                      |                                 |                         | X                             | X                             |                           |                                        |
+| Geany               | X                                        |                                              |                          |                                 |                         |                                 |                                 |                           |                                        |
+| gedit               | X                                        |                                              |                          | X                             |                         |                                 | X                             |                           |                                        |
+| Kakoune             | X                                        | X                                          | X                      | X                             | X                     | X                             | X                             |                           | X                                    |
+| Kate                | X                                        | X                                          |                          | X                             | X                     | X                             | X                             |                           |                                        |
+| Micro               | X                                        | X                                          |                          |                                 | X                     | X                             |                                 |                           |                                        |
+| Midnight Commander  | X                                        |                                              |                          |                                 |                         |                                 |                                 |                           |                                        |
+| Textadept           | X                                        | X                                          | X                      | X                             | X                     |                                 | X                             |                           |                                        |
 |---------------------+--------------------------------------------+----------------------------------------------+--------------------------+---------------------------------+-------------------------+---------------------------------+---------------------------------+---------------------------+----------------------------------------|
-| Eclipse             | [X]                                        |                                              | [X]                      | [X]                             | [X]                     | [X]                             | [X]                             | [X]                       | [X]                                    |
-| IntelliJ-based IDEs | [X]                                        | [X]                                          | [X]                      | [X]                             | [X]                     | [X]                             | [X]                             | [X]                       | [X]                                    |
-| Visual Studio       | [X]                                        |                                              |                          | [X]                             |                         |                                 | [X]                             | [X]                       |                                        |
-| GNOME Builder       | [X]                                        |                                              | [X]                      | [X]                             | [X]                     | [X]                             | [X]                             |                           |                                        |
-| Ride                | [X]                                        |                                              |                          |                                 |                         |                                 |                                 |                           |                                        |
+| Eclipse             | X                                        |                                              | X                      | X                             | X                     | X                             | X                             | X                       | X                                    |
+| IntelliJ-based IDEs | X                                        | X                                          | X                      | X                             | X                     | X                             | X                             | X                       | X                                    |
+| Visual Studio       | X                                        |                                              |                          | X                             |                         |                                 | X                             | X                       |                                        |
+| GNOME Builder       | X                                        |                                              | X                      | X                             | X                     | X                             | X                             |                           |                                        |
+| Ride                | X                                        |                                              |                          |                                 |                         |                                 |                                 |                           |                                        |
 
 * Common Crates
 ** General
@@ -521,6 +521,8 @@
    - thiserror
    - snafu
    - easy-error
+   - eyre
+   - color-eyre
 
 ** Logging
    - log: a lightweight logging facade
@@ -538,34 +540,40 @@
 ** Testing
    - quickcheck
    - proptest
+   - rutenspitz
+   - [[https://rust-fuzz.github.io/book/cargo-fuzz.html][cargo-fuzz]]
+   - [[https://rust-fuzz.github.io/book/afl.html][afl.rs]]
+   - [[https://honggfuzz.dev/][honggfuzz-rs]]
+   - arbitrary
 
 ** Data handling
    - lazy_static
    - once_cell (globality, singleton, lazy initialization)
+   - static_assertions
    - [[http://plv.mpi-sws.org/rustbelt/ghostcell/][GhostCell]]
 
 ** Databases
    - [[https://indradb.github.io/][IndraDB]]
    - [[https://diesel.rs/][diesel]]: orm and query builder supporting
-   - sqlx
+   - [[https://jmoiron.github.io/sqlx/][sqlx]]
    - refinery
    - barrel
 
 ** Gui ([[https://www.areweguiyet.com/][areweguiyet.com]])
    A small selection of crates I used/tried so far:
-   - SixtyFPS
-   - egui
+   - [[https://sixtyfps.io/][SixtyFPS]] (WASM support)
+   - [[https://emilk.github.io/egui/][egui]] (WASM support)
    - imgui
-   - GTK
+   - [[https://gtk-rs.org/][gtk-rs]]
    - relm
+   - [[https://bevyengine.org/][bevy_ui]]
    - and many many more
-   - bevy_ui
 
 ** WebDev
    [[https://www.arewewebyet.org/][Are we web yet]]
-   - Actix
-   - Hyper
-   - Rocket
+   - [[https://actix.rs/][Actix]]
+   - [[https://hyper.rs/][Hyper]]
+   - [[https://rocket.rs/][Rocket]]
    - reqwest
 
 ** Embedded