Initial workspace structure

.gitignore

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+# Generated by Cargo
+# will have compiled files and executables
+debug
+target
+
+# These are backup files generated by rustfmt
+**/*.rs.bk
+
+# MSVC Windows builds of rustc generate these, which store debugging information
+*.pdb
+
+# Generated by cargo mutants
+# Contains mutation testing data
+**/mutants.out*/
+
+# rustc will dump stack traces when hitting an internal compiler error to PWD
+rustc-ice-*.txt
+
+# RustRover
+#  JetBrains specific template is maintained in a separate JetBrains.gitignore that can
+#  be found at https://github.com/github/gitignore/blob/main/Global/JetBrains.gitignore
+#  and can be added to the global gitignore or merged into this file.  For a more nuclear
+#  option (not recommended) you can uncomment the following to ignore the entire idea folder.
+#.idea/

Cargo.lock

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+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 4
+
+[[package]]
+name = "client"
+version = "0.1.0"
+
+[[package]]
+name = "renderer"
+version = "0.1.0"
+
+[[package]]
+name = "server"
+version = "0.1.0"
+
+[[package]]
+name = "shared"
+version = "0.1.0"

Cargo.toml

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+[workspace]
+resolver = "3"
+members = ["crates/*"]

crates/client/Cargo.toml

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+[package]
+name = "client"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]

crates/client/src/main.rs

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+fn main() {
+    println!("Hello, world!");
+}

crates/renderer/Cargo.toml

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+[package]
+name = "renderer"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]

crates/renderer/src/lib.rs

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+pub fn add(left: u64, right: u64) -> u64 {
+    left + right
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn it_works() {
+        let result = add(2, 2);
+        assert_eq!(result, 4);
+    }
+}

crates/server/Cargo.toml

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+[package]
+name = "server"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]

crates/server/src/main.rs

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+fn main() {
+    println!("Hello, world!");
+}

crates/shared/Cargo.toml

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+[package]
+name = "shared"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]

crates/shared/src/lib.rs

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+pub fn add(left: u64, right: u64) -> u64 {
+    left + right
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn it_works() {
+        let result = add(2, 2);
+        assert_eq!(result, 4);
+    }
+}