diff --git a/Cargo.lock b/Cargo.lock
index c0627e7..f1a2b66 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -76,6 +76,23 @@ dependencies = [
  "os_str_bytes",
 ]
 
+[[package]]
+name = "core"
+version = "1.0.0-beta2"
+dependencies = [
+ "alpm",
+ "anyhow",
+ "clap",
+ "macros",
+ "path-absolutize",
+ "regex",
+ "serde",
+ "serde_derive",
+ "serde_json",
+ "serde_yaml",
+ "termios",
+]
+
 [[package]]
 name = "errno"
 version = "0.2.8"
@@ -159,6 +176,23 @@ version = "0.1.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f051f77a7c8e6957c0696eac88f26b0117e54f52d3fc682ab19397a8812846a4"
 
+[[package]]
+name = "macros"
+version = "0.1.0"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "main"
+version = "1.0.0-beta2"
+dependencies = [
+ "anyhow",
+ "core",
+]
+
 [[package]]
 name = "memchr"
 version = "2.5.0"
@@ -184,7 +218,8 @@ dependencies = [
  "alpm",
  "anyhow",
  "clap",
- "pacdef_macro",
+ "core",
+ "macros",
  "path-absolutize",
  "regex",
  "serde",
@@ -194,15 +229,6 @@ dependencies = [
  "termios",
 ]
 
-[[package]]
-name = "pacdef_macro"
-version = "0.1.0"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn",
-]
-
 [[package]]
 name = "path-absolutize"
 version = "3.0.14"
diff --git a/Cargo.toml b/Cargo.toml
index fbae404..8a88804 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,3 +1,6 @@
+[workspace]
+members = ["crates/main", "crates/macros", "crates/core"]
+
 [package]
 name = "pacdef"
 version = "1.0.0-beta2"
@@ -18,7 +21,8 @@ serde_derive = "*"
 serde = "*"
 termios = "*"
 
-pacdef_macro = {path = "pacdef_macro", version = "*"}
+macros = {path = "crates/macros", version = "*"}
+core = {path = "crates/core", version = "1.0.0-beta2"}
 
 [profile.release]
 lto = "off"
@@ -27,4 +31,5 @@ strip = true
 
 [[bin]]
 name = "pacdef"
-path = "src/main.rs"
+path = "crates/main/main.rs"
+
diff --git a/README.md b/README.md
index b3ec5d4..88f973c 100644
--- a/README.md
+++ b/README.md
@@ -208,4 +208,6 @@ topgrade
 
 ## TODO
 
-add zsh completion
+* add zsh completion
+* add license
+
diff --git a/crates/core/Cargo.toml b/crates/core/Cargo.toml
new file mode 100644
index 0000000..b71128b
--- /dev/null
+++ b/crates/core/Cargo.toml
@@ -0,0 +1,21 @@
+[package]
+name = "core"
+version = "1.0.0-beta2"
+edition = "2021"
+description = "declarative package manager for Arch Linux"
+license = "GPLv3"
+repository = "https://github.com/steven-omaha/pacdef"
+
+[dependencies]
+alpm = "*"
+anyhow = "*"
+clap = "*"
+path-absolutize = "*"
+regex = "*"
+serde_json = "*"
+serde_yaml = "*"
+serde_derive = "*"
+serde = "*"
+termios = "*"
+
+macros = {path = "../macros", version = "*"}
diff --git a/build.rs b/crates/core/build.rs
similarity index 100%
rename from build.rs
rename to crates/core/build.rs
diff --git a/src/action.rs b/crates/core/src/action.rs
similarity index 88%
rename from src/action.rs
rename to crates/core/src/action.rs
index f3d4d26..619104d 100644
--- a/src/action.rs
+++ b/crates/core/src/action.rs
@@ -1,4 +1,4 @@
-use pacdef_macro::Action;
+use macros::Action;
 
 #[derive(Debug, Action)]
 pub(crate) enum Actions {
diff --git a/src/args.rs b/crates/core/src/args.rs
similarity index 100%
rename from src/args.rs
rename to crates/core/src/args.rs
diff --git a/src/backend/actual/mod.rs b/crates/core/src/backend/actual/mod.rs
similarity index 100%
rename from src/backend/actual/mod.rs
rename to crates/core/src/backend/actual/mod.rs
diff --git a/src/backend/actual/pacman.rs b/crates/core/src/backend/actual/pacman.rs
similarity index 100%
rename from src/backend/actual/pacman.rs
rename to crates/core/src/backend/actual/pacman.rs
diff --git a/src/backend/actual/rust.rs b/crates/core/src/backend/actual/rust.rs
similarity index 100%
rename from src/backend/actual/rust.rs
rename to crates/core/src/backend/actual/rust.rs
diff --git a/src/backend/backend_trait.rs b/crates/core/src/backend/backend_trait.rs
similarity index 100%
rename from src/backend/backend_trait.rs
rename to crates/core/src/backend/backend_trait.rs
diff --git a/src/backend/iter.rs b/crates/core/src/backend/iter.rs
similarity index 100%
rename from src/backend/iter.rs
rename to crates/core/src/backend/iter.rs
diff --git a/src/backend/macros.rs b/crates/core/src/backend/macros.rs
similarity index 100%
rename from src/backend/macros.rs
rename to crates/core/src/backend/macros.rs
diff --git a/src/backend/mod.rs b/crates/core/src/backend/mod.rs
similarity index 90%
rename from src/backend/mod.rs
rename to crates/core/src/backend/mod.rs
index b04b50a..c694c34 100644
--- a/src/backend/mod.rs
+++ b/crates/core/src/backend/mod.rs
@@ -8,7 +8,7 @@ pub(crate) use backend_trait::Backend;
 pub(crate) use iter::BackendIter;
 pub(crate) use todo_per_backend::ToDoPerBackend;
 
-use pacdef_macro::Register;
+use ::macros::Register;
 
 #[derive(Debug, Register)]
 pub(crate) enum Backends {
diff --git a/src/backend/todo_per_backend.rs b/crates/core/src/backend/todo_per_backend.rs
similarity index 100%
rename from src/backend/todo_per_backend.rs
rename to crates/core/src/backend/todo_per_backend.rs
diff --git a/src/cmd.rs b/crates/core/src/cmd.rs
similarity index 100%
rename from src/cmd.rs
rename to crates/core/src/cmd.rs
diff --git a/src/config.rs b/crates/core/src/config.rs
similarity index 100%
rename from src/config.rs
rename to crates/core/src/config.rs
diff --git a/src/core.rs b/crates/core/src/core.rs
similarity index 100%
rename from src/core.rs
rename to crates/core/src/core.rs
diff --git a/src/env.rs b/crates/core/src/env.rs
similarity index 100%
rename from src/env.rs
rename to crates/core/src/env.rs
diff --git a/src/grouping/group.rs b/crates/core/src/grouping/group.rs
similarity index 100%
rename from src/grouping/group.rs
rename to crates/core/src/grouping/group.rs
diff --git a/src/grouping/mod.rs b/crates/core/src/grouping/mod.rs
similarity index 100%
rename from src/grouping/mod.rs
rename to crates/core/src/grouping/mod.rs
diff --git a/src/grouping/package.rs b/crates/core/src/grouping/package.rs
similarity index 100%
rename from src/grouping/package.rs
rename to crates/core/src/grouping/package.rs
diff --git a/src/grouping/section.rs b/crates/core/src/grouping/section.rs
similarity index 100%
rename from src/grouping/section.rs
rename to crates/core/src/grouping/section.rs
diff --git a/src/lib.rs b/crates/core/src/lib.rs
similarity index 92%
rename from src/lib.rs
rename to crates/core/src/lib.rs
index dd55662..e68c391 100644
--- a/src/lib.rs
+++ b/crates/core/src/lib.rs
@@ -17,4 +17,4 @@ pub use crate::grouping::Group;
 pub(crate) use crate::grouping::Package;
 pub use crate::search::NO_PACKAGES_FOUND;
 
-extern crate pacdef_macro;
+extern crate macros;
diff --git a/src/path.rs b/crates/core/src/path.rs
similarity index 100%
rename from src/path.rs
rename to crates/core/src/path.rs
diff --git a/src/review/datastructures.rs b/crates/core/src/review/datastructures.rs
similarity index 100%
rename from src/review/datastructures.rs
rename to crates/core/src/review/datastructures.rs
diff --git a/src/review/mod.rs b/crates/core/src/review/mod.rs
similarity index 100%
rename from src/review/mod.rs
rename to crates/core/src/review/mod.rs
diff --git a/src/review/strategy.rs b/crates/core/src/review/strategy.rs
similarity index 100%
rename from src/review/strategy.rs
rename to crates/core/src/review/strategy.rs
diff --git a/src/search.rs b/crates/core/src/search.rs
similarity index 100%
rename from src/search.rs
rename to crates/core/src/search.rs
diff --git a/src/ui.rs b/crates/core/src/ui.rs
similarity index 100%
rename from src/ui.rs
rename to crates/core/src/ui.rs
diff --git a/pacdef_macro/Cargo.toml b/crates/macros/Cargo.toml
similarity index 93%
rename from pacdef_macro/Cargo.toml
rename to crates/macros/Cargo.toml
index 9c38412..fcbfe16 100644
--- a/pacdef_macro/Cargo.toml
+++ b/crates/macros/Cargo.toml
@@ -1,5 +1,5 @@
 [package]
-name = "pacdef_macro"
+name = "macros"
 version = "0.1.0"
 edition = "2021"
 description = "procedural macros for pacdef"
diff --git a/pacdef_macro/src/action.rs b/crates/macros/src/action.rs
similarity index 93%
rename from pacdef_macro/src/action.rs
rename to crates/macros/src/action.rs
index f12a6a5..75e6369 100644
--- a/pacdef_macro/src/action.rs
+++ b/crates/macros/src/action.rs
@@ -14,8 +14,8 @@ pub fn action(input: TokenStream) -> TokenStream {
         panic!("`Register` can only be used on enums");
     };
 
-    let variant_description = generate_variant_description(&enum_data);
-    let variant_constants = generate_variant_constants(&name, &enum_data);
+    let variant_description = generate_variant_description(enum_data);
+    let variant_constants = generate_variant_constants(name, enum_data);
 
     let expanded = compile_output(name, variant_description, variant_constants);
 
diff --git a/pacdef_macro/src/lib.rs b/crates/macros/src/lib.rs
similarity index 100%
rename from pacdef_macro/src/lib.rs
rename to crates/macros/src/lib.rs
diff --git a/pacdef_macro/src/register.rs b/crates/macros/src/register.rs
similarity index 100%
rename from pacdef_macro/src/register.rs
rename to crates/macros/src/register.rs
diff --git a/crates/main/Cargo.toml b/crates/main/Cargo.toml
new file mode 100644
index 0000000..dc4109a
--- /dev/null
+++ b/crates/main/Cargo.toml
@@ -0,0 +1,15 @@
+[package]
+name = "main"
+version = "1.0.0-beta2"
+edition = "2021"
+description = "declarative package manager for Arch Linux"
+license = "GPLv3"
+repository = "https://github.com/steven-omaha/pacdef"
+
+[[bin]]
+name = "pacdef"
+path = "main.rs"
+
+[dependencies]
+anyhow = "*"
+core = { path = "../core", version = "1.0.0-beta2" }
diff --git a/src/main.rs b/crates/main/main.rs
similarity index 90%
rename from src/main.rs
rename to crates/main/main.rs
index 92b6808..c9ca06f 100644
--- a/src/main.rs
+++ b/crates/main/main.rs
@@ -2,7 +2,7 @@ use std::process::{ExitCode, Termination};
 
 use anyhow::{Context, Result};
 
-use pacdef::{args, Config, Group, Pacdef};
+use core::{args, Config, Group, Pacdef};
 
 fn main() -> ExitCode {
     handle_final_result(main_inner())
@@ -16,7 +16,7 @@ fn handle_final_result(result: Result<()>) -> ExitCode {
         Err(ref e) => {
             let msg = e.root_cause().to_string();
 
-            if msg == pacdef::NO_PACKAGES_FOUND {
+            if msg == core::NO_PACKAGES_FOUND {
                 ExitCode::FAILURE
             } else {
                 result.report()
diff --git a/pacdef_macro/Cargo.lock b/pacdef_macro/Cargo.lock
deleted file mode 100644
index 6f1e7a9..0000000
--- a/pacdef_macro/Cargo.lock
+++ /dev/null
@@ -1,47 +0,0 @@
-# This file is automatically @generated by Cargo.
-# It is not intended for manual editing.
-version = 3
-
-[[package]]
-name = "pacdef_macro"
-version = "0.1.0"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn",
-]
-
-[[package]]
-name = "proc-macro2"
-version = "1.0.50"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6ef7d57beacfaf2d8aee5937dab7b7f28de3cb8b1828479bb5de2a7106f2bae2"
-dependencies = [
- "unicode-ident",
-]
-
-[[package]]
-name = "quote"
-version = "1.0.23"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8856d8364d252a14d474036ea1358d63c9e6965c8e5c1885c18f73d70bff9c7b"
-dependencies = [
- "proc-macro2",
-]
-
-[[package]]
-name = "syn"
-version = "1.0.107"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1f4064b5b16e03ae50984a5a8ed5d4f8803e6bc1fd170a3cda91a1be4b18e3f5"
-dependencies = [
- "proc-macro2",
- "quote",
- "unicode-ident",
-]
-
-[[package]]
-name = "unicode-ident"
-version = "1.0.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "84a22b9f218b40614adcb3f4ff08b703773ad44fa9423e4e0d346d5db86e4ebc"