diff --git a/docs/src/SUMMARY.md b/docs/src/SUMMARY.md
index a4d3ae9..10a9435 100644
--- a/docs/src/SUMMARY.md
+++ b/docs/src/SUMMARY.md
@@ -2,4 +2,11 @@
 
 - [Workshop Intro: About MLIR and LLVM](./about.md)
 - [MLIR Basics](./mlir_basics.md)
-- [Implementing the language: Part 1](./lang_1.md)
+- [Workshop: Setup](./workshop_p1.md)
+- [Workshop: Walk through the prepared codebase](./workshop_p2.md)
+- [Workshop: Compiling Expressions](./workshop_p3.md)
+- [Workshop: Compiling Let](./workshop_p4.md)
+- [Workshop: Compiling Return](./workshop_p5.md)
+- [Workshop: Compiling If/Else](./workshop_p6.md)
+- [Workshop: Compiling Function calls](./workshop_p7.md)
+- [Workshop: Extras](./workshop_p8.md)
diff --git a/docs/src/about.md b/docs/src/about.md
index 361b7d1..d82f3ef 100644
--- a/docs/src/about.md
+++ b/docs/src/about.md
@@ -1,6 +1,6 @@
 # About this Workshop
 
-In this workshop you will learn a bit about what is LLVM and MLIR, by implementing a really simple programming language compiler. This language only has variables of type u64, and only supports simple functions with arguments, basic arithmetic operations and if else statements.
+In this workshop you will learn a bit about what is LLVM and MLIR, by implementing a really simple programming language compiler. This language only has variables of type i64, and only supports simple functions with arguments, basic arithmetic operations and if else statements.
 
 # What is LLVM?
 
@@ -127,7 +127,7 @@ In our case, we want to have a compiled program, so LLVM IR will be our target,
 
 # Other Learning Resources
 
-These are extra resources, they aren't meant to be read now in the workshop but they are here for your convenience.
+> These are extra resources, they aren't meant to be read now in the workshop but they are here for your convenience.
 
 Resources marked with **→** are best.
 
diff --git a/docs/src/lang_1.md b/docs/src/workshop_p1.md
similarity index 87%
rename from docs/src/lang_1.md
rename to docs/src/workshop_p1.md
index 501a8fb..03735b3 100644
--- a/docs/src/lang_1.md
+++ b/docs/src/workshop_p1.md
@@ -1,4 +1,4 @@
-# Implementing the language: 1
+# Workshop: Setup
 
 ## Project Setup
 
@@ -23,4 +23,8 @@ export LLVM_SYS_191_PREFIX="$(brew --prefix llvm@19)"
 export TABLEGEN_190_PREFIX="$(brew --prefix llvm@19)"
 ```
 
-TODO
+Verify you can build the project:
+
+```bash
+cargo build
+```
diff --git a/docs/src/workshop_p2.md b/docs/src/workshop_p2.md
new file mode 100644
index 0000000..1d046d2
--- /dev/null
+++ b/docs/src/workshop_p2.md
@@ -0,0 +1 @@
+# Workshop: Walkthrough the prepared codebase
diff --git a/docs/src/workshop_p3.md b/docs/src/workshop_p3.md
new file mode 100644
index 0000000..510bbb9
--- /dev/null
+++ b/docs/src/workshop_p3.md
@@ -0,0 +1 @@
+# Workshop: Compiling Expressions
diff --git a/docs/src/workshop_p4.md b/docs/src/workshop_p4.md
new file mode 100644
index 0000000..1bf3b2a
--- /dev/null
+++ b/docs/src/workshop_p4.md
@@ -0,0 +1 @@
+# Workshop: Compiling Let
diff --git a/docs/src/workshop_p5.md b/docs/src/workshop_p5.md
new file mode 100644
index 0000000..a1ec8ff
--- /dev/null
+++ b/docs/src/workshop_p5.md
@@ -0,0 +1 @@
+# Workshop: Compiling Return
diff --git a/docs/src/workshop_p6.md b/docs/src/workshop_p6.md
new file mode 100644
index 0000000..4b50c5f
--- /dev/null
+++ b/docs/src/workshop_p6.md
@@ -0,0 +1 @@
+# Workshop: Compiling If/Else
diff --git a/docs/src/workshop_p7.md b/docs/src/workshop_p7.md
new file mode 100644
index 0000000..6584552
--- /dev/null
+++ b/docs/src/workshop_p7.md
@@ -0,0 +1 @@
+# Workshop: Compiling Function calls
diff --git a/docs/src/workshop_p8.md b/docs/src/workshop_p8.md
new file mode 100644
index 0000000..507c519
--- /dev/null
+++ b/docs/src/workshop_p8.md
@@ -0,0 +1 @@
+# Workshop: Extras
diff --git a/src/ast.rs b/src/ast.rs
index 0ff7bce..d0fd7b0 100644
--- a/src/ast.rs
+++ b/src/ast.rs
@@ -1,6 +1,6 @@
 #[derive(Debug, Clone)]
 pub enum Expr {
-    Number(i32),
+    Number(i64),
     Variable(String),
     Op(Box<Expr>, Opcode, Box<Expr>),
 }
diff --git a/src/main.rs b/src/main.rs
index f8b2884..a4c0060 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -4,7 +4,9 @@ use clap::Parser;
 use codegen::{compile_program, ModuleCtx};
 use lalrpop_util::lalrpop_mod;
 use melior::{
+    dialect::DialectRegistry,
     ir::{Location, Module},
+    utility::register_all_dialects,
     Context,
 };
 
@@ -38,7 +40,13 @@ fn main() {
     let source = fs::read_to_string(&args.input).unwrap();
     let program = grammar::ProgramParser::new().parse(&source).unwrap();
 
+    // We need a registry to hold all the dialects
+    let registry = DialectRegistry::new();
+    // Register all dialects that come with MLIR.
+    register_all_dialects(&registry);
     let context = Context::new();
+    context.append_dialect_registry(&registry);
+    context.load_all_available_dialects();
     let ctx = ModuleCtx {
         ctx: &context,
         module: Module::new(Location::unknown(&context)),