diff --git a/_extensions/quarto-ext/include-code-files/_extension.yml b/_extensions/quarto-ext/include-code-files/_extension.yml
new file mode 100644
index 0000000..13c4960
--- /dev/null
+++ b/_extensions/quarto-ext/include-code-files/_extension.yml
@@ -0,0 +1,9 @@
+title: Include Code Files
+author: Bruno Beaufils
+version: 1.0.0
+quarto-required: ">=1.2"
+contributes:
+  filters:
+    - include-code-files.lua
+
+
diff --git a/_extensions/quarto-ext/include-code-files/include-code-files.lua b/_extensions/quarto-ext/include-code-files/include-code-files.lua
new file mode 100644
index 0000000..c5f5cbf
--- /dev/null
+++ b/_extensions/quarto-ext/include-code-files/include-code-files.lua
@@ -0,0 +1,63 @@
+--- include-code-files.lua – filter to include code from source files
+---
+--- Copyright: © 2020 Bruno BEAUFILS
+--- License:   MIT – see LICENSE file for details
+
+--- Dedent a line
+local function dedent (line, n)
+  return line:sub(1,n):gsub(" ","") .. line:sub(n+1)
+end
+
+--- Filter function for code blocks
+local function transclude (cb)
+  if cb.attributes.include then
+    local content = ""
+    local fh = io.open(cb.attributes.include)
+    if not fh then
+      io.stderr:write("Cannot open file " .. cb.attributes.include .. " | Skipping includes\n")
+    else
+      local number = 1
+      local start = 1
+
+      -- change hyphenated attributes to PascalCase
+      for i,pascal in pairs({"startLine", "endLine"})
+      do
+         local hyphen = pascal:gsub("%u", "-%0"):lower()
+         if cb.attributes[hyphen] then
+            cb.attributes[pascal] = cb.attributes[hyphen]
+            cb.attributes[hyphen] = nil
+         end
+      end
+
+      if cb.attributes.startLine then
+        cb.attributes.startFrom = cb.attributes.startLine
+        start = tonumber(cb.attributes.startLine)
+      end
+      for line in fh:lines ("L")
+      do
+        if cb.attributes.dedent then
+          line = dedent(line, cb.attributes.dedent)
+        end
+        if number >= start then
+          if not cb.attributes.endLine or number <= tonumber(cb.attributes.endLine) then
+            content = content .. line
+          end
+        end
+        number = number + 1
+      end 
+      fh:close()
+    end     
+    -- remove key-value pair for used keys
+    cb.attributes.include = nil
+    cb.attributes.startLine = nil
+    cb.attributes.endLine = nil
+    cb.attributes.dedent = nil
+    -- return final code block
+    return pandoc.CodeBlock(content, cb.attr)
+  end
+end
+
+return {
+  { CodeBlock = transclude }
+}
+
diff --git a/_quarto.yml b/_quarto.yml
index 5474afb..a8fc0c9 100644
--- a/_quarto.yml
+++ b/_quarto.yml
@@ -2,5 +2,5 @@ project:
   title: "you-should-use-renv"
   type: website
 
-
-
+filters:
+  - include-code-files
diff --git a/workshop.qmd b/workshop.qmd
new file mode 100644
index 0000000..497b941
--- /dev/null
+++ b/workshop.qmd
@@ -0,0 +1,100 @@
+---
+format:
+  revealjs:
+    transition: fade
+    theme: night
+    mermaid-format: svg
+    navigation-mode: linear
+    controls: false
+from: markdown+emoji
+---
+
+#  {background-image="images/julia-joppien-XFUqd0u5U7w-unsplash.jpg"}
+
+::: columns
+::: {.column width="30%"}
+::: {.r-fit-text color="white"}
+You <br/> should <br/> use <br/> renv.
+:::
+:::
+
+::: {.column width="70%"}
+:::
+:::
+
+::: fragment
+workshop
+:::
+
+# agenda
+
+::: columns
+
+::: {.column width="50%"}
+::: {.r-fit-text .fragment}
+why
+:::
+:::
+
+
+::: {.column width="50%"}
+::: {.r-fit-text .fragment}
+how
+:::
+:::
+
+:::
+
+# why
+
+## sermon
+
+[you should use renv.](https://www.youtube.com/watch?v=GwVx_pf2uz4)
+
+## commandment
+
+_projects_ should be _reproducible._
+
+::: notes
+projects, for the purpose of this workshop, are anything you want to share that isn't an R package--shiny app, plumber API, quarto doc  
+reproducibility is a [layered, spectral](https://ropensci-archive.github.io/reproducibility-guide/sections/introduction/) concept rather than a binary  
+the goal is for the project to be reproducible to the maximum extent possible
+:::
+
+# how
+
+## [on repositories](https://rstudio.github.io/renv/articles/package-sources.html#custom-r-package-repositories)
+
+```bash
+> options("repos")
+$repos
+                                         CRAN 
+"https://packagemanager.posit.co/cran/latest" 
+```
+
+::: notes
+renv will 
+:::
+
+## fetch examples
+
+```{.r}
+usethis::use_zip("https://gitlab.com/edavidaja/renv-workshop/-/archive/main/renv-workshop-main.zip")
+```
+or
+
+```bash
+git clone https://gitlab.com/edavidaja/renv-workshop
+```
+
+## new project
+
+## existing project
+
+## old project
+
+[an old shiny app](https://github.com/edavidaja/clippers)
+
+## R version migration
+
+[rig](https://github.com/r-lib/rig)
\ No newline at end of file