diff --git a/Cargo.lock b/Cargo.lock
index 1990bf4..65f282d 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -3,12 +3,25 @@
 version = 3
 
 [[package]]
-name = "adventofcode2022"
-version = "2022.1.0"
+name = "aoc"
+version = "0.0.1"
+
+[[package]]
+name = "aoc22"
+version = "0.0.1"
 dependencies = [
+ "aoc",
  "clap",
 ]
 
+[[package]]
+name = "aoc22-gdrop"
+version = "0.0.1"
+dependencies = [
+ "aoc",
+ "gumdrop",
+]
+
 [[package]]
 name = "bitflags"
 version = "1.3.2"
@@ -17,9 +30,9 @@ checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
 
 [[package]]
 name = "cc"
-version = "1.0.77"
+version = "1.0.78"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e9f73505338f7d905b19d18738976aae232eb46b8efc15554ffc56deb5d9ebe4"
+checksum = "a20104e2335ce8a659d6dd92a51a767a0c062599c73b343fd152cb401e828c3d"
 
 [[package]]
 name = "clap"
@@ -79,6 +92,26 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "gumdrop"
+version = "0.8.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5bc700f989d2f6f0248546222d9b4258f5b02a171a431f8285a81c08142629e3"
+dependencies = [
+ "gumdrop_derive",
+]
+
+[[package]]
+name = "gumdrop_derive"
+version = "0.8.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "729f9bd3449d77e7831a18abfb7ba2f99ee813dfd15b8c2167c9a54ba20aa99d"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "heck"
 version = "0.4.0"
@@ -118,15 +151,15 @@ dependencies = [
 
 [[package]]
 name = "libc"
-version = "0.2.137"
+version = "0.2.138"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fc7fcc620a3bff7cdd7a365be3376c97191aeaccc2a603e600951e452615bf89"
+checksum = "db6d7e329c562c5dfab7a46a2afabc8b987ab9a4834c9d1ca04dc54c1546cef8"
 
 [[package]]
 name = "linux-raw-sys"
-version = "0.1.3"
+version = "0.1.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8f9f08d8963a6c613f4b1a78f4f4a4dbfadf8e6545b2d72861731e4858b8b47f"
+checksum = "f051f77a7c8e6957c0696eac88f26b0117e54f52d3fc682ab19397a8812846a4"
 
 [[package]]
 name = "once_cell"
@@ -166,27 +199,27 @@ dependencies = [
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.47"
+version = "1.0.49"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5ea3d908b0e36316caf9e9e2c4625cdde190a7e6f440d794667ed17a1855e725"
+checksum = "57a8eca9f9c4ffde41714334dee777596264c7825420f521abc92b5b5deb63a5"
 dependencies = [
  "unicode-ident",
 ]
 
 [[package]]
 name = "quote"
-version = "1.0.21"
+version = "1.0.23"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bbe448f377a7d6961e30f5955f9b8d106c3f5e449d493ee1b125c1d43c2b5179"
+checksum = "8856d8364d252a14d474036ea1358d63c9e6965c8e5c1885c18f73d70bff9c7b"
 dependencies = [
  "proc-macro2",
 ]
 
 [[package]]
 name = "rustix"
-version = "0.36.4"
+version = "0.36.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cb93e85278e08bb5788653183213d3a60fc242b10cb9be96586f5a73dcb67c23"
+checksum = "a3807b5d10909833d3e9acd1eb5fb988f79376ff10fce42937de71a449c4c588"
 dependencies = [
  "bitflags",
  "errno",
@@ -204,9 +237,9 @@ checksum = "73473c0e59e6d5812c5dfe2a064a6444949f089e20eec9a2e5506596494e4623"
 
 [[package]]
 name = "syn"
-version = "1.0.105"
+version = "1.0.107"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "60b9b43d45702de4c839cb9b51d9f529c5dd26a4aff255b42b1ebc03e88ee908"
+checksum = "1f4064b5b16e03ae50984a5a8ed5d4f8803e6bc1fd170a3cda91a1be4b18e3f5"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -224,9 +257,9 @@ dependencies = [
 
 [[package]]
 name = "unicode-ident"
-version = "1.0.5"
+version = "1.0.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6ceab39d59e4c9499d4e5a8ee0e2735b891bb7308ac83dfb4e80cad195c9f6f3"
+checksum = "84a22b9f218b40614adcb3f4ff08b703773ad44fa9423e4e0d346d5db86e4ebc"
 
 [[package]]
 name = "version_check"
diff --git a/Cargo.toml b/Cargo.toml
index 4de8ea2..90b96af 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,8 +1,6 @@
-[package]
-name = "adventofcode2022"
-version = "2022.1.0"
-edition = "2021"
-
-
-[dependencies]
-clap = { version = "4.0.29", features = ["derive"] }
+[workspace]
+members = [
+"aoc22",
+"aoc22-gdrop",
+"aoc"
+]
diff --git a/aoc/Cargo.toml b/aoc/Cargo.toml
new file mode 100644
index 0000000..9330341
--- /dev/null
+++ b/aoc/Cargo.toml
@@ -0,0 +1,7 @@
+[package]
+name = "aoc"
+version = "0.0.1"
+edition = "2021"
+authors = ["Leo Drachenfeuer <leo.drachenfeuer@m-spezial.de>"]
+
+[dependencies]
diff --git a/aoc/src/lib.rs b/aoc/src/lib.rs
new file mode 100644
index 0000000..cd57476
--- /dev/null
+++ b/aoc/src/lib.rs
@@ -0,0 +1,4 @@
+pub mod year2022;
+pub mod util;
+
+pub use year2022::*;
diff --git a/src/util.rs b/aoc/src/util.rs
similarity index 100%
rename from src/util.rs
rename to aoc/src/util.rs
diff --git a/src/cli/commands/day001.rs b/aoc/src/year2022/day001.rs
similarity index 100%
rename from src/cli/commands/day001.rs
rename to aoc/src/year2022/day001.rs
diff --git a/src/cli/commands/day002.rs b/aoc/src/year2022/day002.rs
similarity index 100%
rename from src/cli/commands/day002.rs
rename to aoc/src/year2022/day002.rs
diff --git a/src/cli/commands/day003.rs b/aoc/src/year2022/day003.rs
similarity index 100%
rename from src/cli/commands/day003.rs
rename to aoc/src/year2022/day003.rs
diff --git a/src/cli/commands/day004.rs b/aoc/src/year2022/day004.rs
similarity index 100%
rename from src/cli/commands/day004.rs
rename to aoc/src/year2022/day004.rs
diff --git a/src/cli/commands/day005.rs b/aoc/src/year2022/day005.rs
similarity index 100%
rename from src/cli/commands/day005.rs
rename to aoc/src/year2022/day005.rs
diff --git a/src/cli/commands/day006.rs b/aoc/src/year2022/day006.rs
similarity index 100%
rename from src/cli/commands/day006.rs
rename to aoc/src/year2022/day006.rs
diff --git a/src/cli/commands/day007.rs b/aoc/src/year2022/day007.rs
similarity index 100%
rename from src/cli/commands/day007.rs
rename to aoc/src/year2022/day007.rs
diff --git a/src/cli/commands/day008.rs b/aoc/src/year2022/day008.rs
similarity index 100%
rename from src/cli/commands/day008.rs
rename to aoc/src/year2022/day008.rs
diff --git a/src/cli/commands/day009.rs b/aoc/src/year2022/day009.rs
similarity index 100%
rename from src/cli/commands/day009.rs
rename to aoc/src/year2022/day009.rs
diff --git a/src/cli/commands/day010.rs b/aoc/src/year2022/day010.rs
similarity index 100%
rename from src/cli/commands/day010.rs
rename to aoc/src/year2022/day010.rs
diff --git a/src/cli/commands/day011.rs b/aoc/src/year2022/day011.rs
similarity index 100%
rename from src/cli/commands/day011.rs
rename to aoc/src/year2022/day011.rs
diff --git a/src/cli/commands/day012.rs b/aoc/src/year2022/day012.rs
similarity index 100%
rename from src/cli/commands/day012.rs
rename to aoc/src/year2022/day012.rs
diff --git a/src/cli/commands/day013.rs b/aoc/src/year2022/day013.rs
similarity index 100%
rename from src/cli/commands/day013.rs
rename to aoc/src/year2022/day013.rs
diff --git a/src/cli/commands/day014.rs b/aoc/src/year2022/day014.rs
similarity index 100%
rename from src/cli/commands/day014.rs
rename to aoc/src/year2022/day014.rs
diff --git a/src/cli/commands/day015.rs b/aoc/src/year2022/day015.rs
similarity index 100%
rename from src/cli/commands/day015.rs
rename to aoc/src/year2022/day015.rs
diff --git a/src/cli/commands/day016.rs b/aoc/src/year2022/day016.rs
similarity index 100%
rename from src/cli/commands/day016.rs
rename to aoc/src/year2022/day016.rs
diff --git a/src/cli/commands/day017.rs b/aoc/src/year2022/day017.rs
similarity index 100%
rename from src/cli/commands/day017.rs
rename to aoc/src/year2022/day017.rs
diff --git a/src/cli/commands/day018.rs b/aoc/src/year2022/day018.rs
similarity index 100%
rename from src/cli/commands/day018.rs
rename to aoc/src/year2022/day018.rs
diff --git a/src/cli/commands/day019.rs b/aoc/src/year2022/day019.rs
similarity index 100%
rename from src/cli/commands/day019.rs
rename to aoc/src/year2022/day019.rs
diff --git a/src/cli/commands/day020.rs b/aoc/src/year2022/day020.rs
similarity index 100%
rename from src/cli/commands/day020.rs
rename to aoc/src/year2022/day020.rs
diff --git a/src/cli/commands/day021.rs b/aoc/src/year2022/day021.rs
similarity index 100%
rename from src/cli/commands/day021.rs
rename to aoc/src/year2022/day021.rs
diff --git a/src/cli/commands/day022.rs b/aoc/src/year2022/day022.rs
similarity index 100%
rename from src/cli/commands/day022.rs
rename to aoc/src/year2022/day022.rs
diff --git a/src/cli/commands/day023.rs b/aoc/src/year2022/day023.rs
similarity index 100%
rename from src/cli/commands/day023.rs
rename to aoc/src/year2022/day023.rs
diff --git a/src/cli/commands/day024.rs b/aoc/src/year2022/day024.rs
similarity index 100%
rename from src/cli/commands/day024.rs
rename to aoc/src/year2022/day024.rs
diff --git a/src/cli/commands/day025.rs b/aoc/src/year2022/day025.rs
similarity index 100%
rename from src/cli/commands/day025.rs
rename to aoc/src/year2022/day025.rs
diff --git a/aoc/src/year2022/mod.rs b/aoc/src/year2022/mod.rs
new file mode 100644
index 0000000..e73cfd1
--- /dev/null
+++ b/aoc/src/year2022/mod.rs
@@ -0,0 +1,35 @@
+mod day001;
+mod day002;
+mod day003;
+mod day004;
+mod day005;
+mod day006;
+mod day007;
+mod day008;
+mod day009;
+//mod day010;
+//mod day011;
+//mod day012;
+//mod day013;
+//mod day014;
+//mod day015;
+//mod day016;
+//mod day017;
+//mod day018;
+//mod day019;
+//mod day020;
+//mod day021;
+//mod day022;
+//mod day023;
+//mod day024;
+//mod day025;
+
+pub use day001::*;
+pub use day002::*;
+pub use day003::*;
+pub use day004::*;
+pub use day005::*;
+pub use day006::*;
+pub use day007::*;
+pub use day008::*;
+pub use day009::*;
diff --git a/aoc22-gdrop/Cargo.toml b/aoc22-gdrop/Cargo.toml
new file mode 100644
index 0000000..2cf8611
--- /dev/null
+++ b/aoc22-gdrop/Cargo.toml
@@ -0,0 +1,9 @@
+[package]
+name = "aoc22-gdrop"
+version = "0.0.1"
+edition = "2021"
+authors = ["Leo Drachenfeuer <leo.drachenfeuer@m-spezial.de>"]
+
+[dependencies]
+gumdrop = "0.8"
+aoc = {path= "../aoc"}
diff --git a/aoc22-gdrop/src/cli/mod.rs b/aoc22-gdrop/src/cli/mod.rs
new file mode 100644
index 0000000..6a87d2f
--- /dev/null
+++ b/aoc22-gdrop/src/cli/mod.rs
@@ -0,0 +1,90 @@
+use aoc::*;
+use gumdrop::Options;
+//use std::ffi::OsString;
+use std::path::PathBuf;
+
+#[derive(Debug, Options)]
+pub struct AdventOfCode2022 {
+    // Options here can be accepted with any command (or none at all),
+    // but they must come before the command name.
+    #[options(help = "print help message")]
+    help: bool,
+    #[options(help = "be verbose")]
+    verbose: bool,
+
+    // The `command` option will delegate option parsing to the command type,
+    // starting at the first free argument.
+    #[options(command)]
+    command: Option<Commands>,
+}
+
+#[derive(Debug, Options)]
+pub enum Commands {
+    #[options(name = "day001", help = "Solution for the first day")]
+    Day001(Day001Options),
+    #[options(name = "day002", help = "Solution for the second day")]
+    Day002(BasicOptions2),
+    #[options(name = "day003", help = "Solution for day 03")]
+    Day003(BasicOptions),
+    #[options(name = "day004", help = "Solution for day 04")]
+    Day004(BasicOptions),
+    #[options(name = "day005", help = "Solution for day 05")]
+    Day005(BasicOptions),
+    #[options(name = "day006", help = "Solution for day 06")]
+    Day006(BasicOptions),
+    #[options(name = "day007", help = "Solution for day 07")]
+    Day007(BasicOptions),
+    #[options(name = "day008", help = "Solution for day 08")]
+    Day008(BasicOptions),
+}
+
+#[derive(Debug, Options)]
+pub struct BasicOptions {
+    #[options(free, help = "file with input data")]
+    file: Option<PathBuf>,
+    #[options(help = "use alternative subfunction for part2")]
+    alt: bool,
+}
+
+#[derive(Debug, Options)]
+pub struct BasicOptions2 {
+    #[options(free, help = "file with input data")]
+    file: Option<PathBuf>,
+    #[options(help = "use alternative subfunction for part2")]
+    alt: bool,
+    #[options(help = "switch between different implentations")]
+    mode: u8,
+}
+
+#[derive(Debug, Options)]
+pub struct Day001Options {
+    #[options(free, help = "file with input data")]
+    file: Option<PathBuf>,
+    #[options(help = "use alternative subfunction for part2", default = "1")]
+    top: i32,
+    #[options(help = "calc the sume of all wanted top positions")]
+    total: bool,
+}
+
+pub fn execute_cli() {
+    let aoc2022 = AdventOfCode2022::parse_args_default_or_exit();
+    match aoc2022.command {
+        Some(Commands::Day001(Day001Options { file, top, total })) => {
+            Day001Options::p
+            subcmd_day001(&file, &top, &total)
+        },
+        Some(Commands::Day002(BasicOptions2 { file, alt, mode })) => match mode {
+            0 => subcmd_day002(&file, &alt),
+            1 => subcmd_day002_op(&file, &alt),
+            2 => subcmd_day002_iter(&file, &alt),
+            _ => panic!(),
+        },
+        Some(Commands::Day003(BasicOptions { file, alt })) => subcmd_day003(&file, &alt),
+        Some(Commands::Day004(BasicOptions { file, alt })) => subcmd_day004(&file, &alt),
+        Some(Commands::Day005(BasicOptions { file, alt })) => subcmd_day005(&file, &alt),
+        Some(Commands::Day006(BasicOptions { file, alt })) => subcmd_day006(&file, &alt),
+        Some(Commands::Day007(BasicOptions { file, alt })) => subcmd_day007(&file, &alt),
+        Some(Commands::Day008(BasicOptions { file, alt })) => subcmd_day008(&file, &alt),
+        None => unreachable!(),
+    }
+}
diff --git a/aoc22-gdrop/src/main.rs b/aoc22-gdrop/src/main.rs
new file mode 100644
index 0000000..7311e21
--- /dev/null
+++ b/aoc22-gdrop/src/main.rs
@@ -0,0 +1,10 @@
+mod cli;
+use std::env;
+use cli::execute_cli;
+
+fn main() {
+    execute_cli();
+    for argument in env::args() {
+        println!("{argument}");
+    }
+}
diff --git a/aoc22/Cargo.toml b/aoc22/Cargo.toml
new file mode 100644
index 0000000..852dab8
--- /dev/null
+++ b/aoc22/Cargo.toml
@@ -0,0 +1,10 @@
+[package]
+name = "aoc22"
+version = "0.0.1"
+edition = "2021"
+authors = ["Leo Drachenfeuer <leo.drachenfeuer@m-spezial.de>"]
+default-run = "aoc22"
+
+[dependencies]
+clap = { version = "4.0.29", features = ["derive"] }
+aoc = {path= "../aoc"}
diff --git a/src/cli/mod.rs b/aoc22/src/cli/mod.rs
similarity index 92%
rename from src/cli/mod.rs
rename to aoc22/src/cli/mod.rs
index be32135..462e509 100644
--- a/src/cli/mod.rs
+++ b/aoc22/src/cli/mod.rs
@@ -1,13 +1,5 @@
-mod commands;
 use clap::{arg, Parser, Subcommand};
-use commands::day001::*;
-use commands::day002::*;
-use commands::day003::*;
-use commands::day004::*;
-use commands::day005::*;
-use commands::day006::*;
-use commands::day007::*;
-use commands::day008::*;
+use aoc::*;
 //use std::ffi::OsString;
 use std::path::PathBuf;
 
diff --git a/aoc22/src/main.rs b/aoc22/src/main.rs
new file mode 100644
index 0000000..2c5be02
--- /dev/null
+++ b/aoc22/src/main.rs
@@ -0,0 +1,11 @@
+mod cli;
+
+use std::env;
+use cli::execute_cli;
+
+fn main() {
+    execute_cli();
+    for argument in env::args() {
+        println!("{argument}");
+    }
+}
diff --git a/notes.md b/notes.md
new file mode 100644
index 0000000..1e2e506
--- /dev/null
+++ b/notes.md
@@ -0,0 +1,2 @@
+clap is the best availiable arg parser at the moment for rust but clap comes with the tradeoff of a size overhead for the executalble.
+The overhead is around 550kb
\ No newline at end of file
diff --git a/src/cli/commands/mod.rs b/src/cli/commands/mod.rs
deleted file mode 100644
index 080c1c0..0000000
--- a/src/cli/commands/mod.rs
+++ /dev/null
@@ -1,25 +0,0 @@
-pub mod day001;
-pub mod day002;
-pub mod day003;
-pub mod day004;
-pub mod day005;
-pub mod day006;
-pub mod day007;
-pub mod day008;
-pub mod day009;
-//pub mod day010;
-//pub mod day011;
-//pub mod day012;
-//pub mod day013;
-//pub mod day014;
-//pub mod day015;
-//pub mod day016;
-//pub mod day017;
-//pub mod day018;
-//pub mod day019;
-//pub mod day020;
-//pub mod day021;
-//pub mod day022;
-//pub mod day023;
-//pub mod day024;
-//pub mod day025;
diff --git a/src/main.rs b/src/main.rs
deleted file mode 100644
index 634bff3..0000000
--- a/src/main.rs
+++ /dev/null
@@ -1,8 +0,0 @@
-pub mod util;
-mod cli;
-
-use cli::execute_cli;
-
-fn main() {
-    execute_cli();
-}