diff --git a/.gitignore b/.gitignore
index 3658b9b..c74e80b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -13,3 +13,4 @@ devenv.local.yaml
 # Added by cargo
 
 /target
+/.session
diff --git a/.session b/.session
deleted file mode 100644
index acb0b6a..0000000
--- a/.session
+++ /dev/null
@@ -1,50 +0,0 @@
-let SessionLoad = 1
-let s:so_save = &g:so | let s:siso_save = &g:siso | setg so=0 siso=0 | setl so=-1 siso=-1
-let v:this_session=expand("<sfile>:p")
-doautoall SessionLoadPre
-silent only
-silent tabonly
-cd ~/Projects/shelf
-if expand('%') == '' && !&modified && line('$') <= 1 && getline(1) == ''
-  let s:wipebuf = bufnr('%')
-endif
-let s:shortmess_save = &shortmess
-set shortmess+=aoO
-badd +8 devenv.nix
-argglobal
-%argdel
-$argadd devenv.nix
-edit devenv.nix
-argglobal
-setlocal foldmethod=manual
-setlocal foldexpr=0
-setlocal foldmarker={{{,}}}
-setlocal foldignore=#
-setlocal foldlevel=0
-setlocal foldminlines=1
-setlocal foldnestmax=20
-setlocal foldenable
-silent! normal! zE
-let &fdl = &fdl
-let s:l = 8 - ((7 * winheight(0) + 22) / 45)
-if s:l < 1 | let s:l = 1 | endif
-keepjumps exe s:l
-normal! zt
-keepjumps 8
-normal! 054|
-tabnext 1
-if exists('s:wipebuf') && len(win_findbuf(s:wipebuf)) == 0 && getbufvar(s:wipebuf, '&buftype') isnot# 'terminal'
-  silent exe 'bwipe ' . s:wipebuf
-endif
-unlet! s:wipebuf
-set winheight=1 winwidth=20
-let &shortmess = s:shortmess_save
-let s:sx = expand("<sfile>:p:r")."x.vim"
-if filereadable(s:sx)
-  exe "source " . fnameescape(s:sx)
-endif
-let &g:so = s:so_save | let &g:siso = s:siso_save
-nohlsearch
-doautoall SessionLoadPost
-unlet SessionLoad
-" vim: set ft=vim :
diff --git a/Cargo.lock b/Cargo.lock
new file mode 100644
index 0000000..2b63e8b
--- /dev/null
+++ b/Cargo.lock
@@ -0,0 +1,107 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 4
+
+[[package]]
+name = "itoa"
+version = "1.0.18"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8f42a60cbdf9a97f5d2305f08a87dc4e09308d1276d28c869c684d7777685682"
+
+[[package]]
+name = "memchr"
+version = "2.8.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cf8baf1c55e62ffcace7a9f06f4bd9cd3f0c4beb022d3b367256b91b87513d98"
+
+[[package]]
+name = "proc-macro2"
+version = "1.0.107"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "985e7ec9bb745e6ce6535b544d84d6cd6f7ad8bd711c398938ae983b91a766d9"
+dependencies = [
+ "unicode-ident",
+]
+
+[[package]]
+name = "quote"
+version = "1.0.47"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1fbf4db142a473a8d80c26bbf18454ed458bf8d26c8219c331daecfdbd079001"
+dependencies = [
+ "proc-macro2",
+]
+
+[[package]]
+name = "serde"
+version = "1.0.229"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4148590afebada386688f18773da617792bf2ef03ffc1e4cbd2b1d45b023e0ba"
+dependencies = [
+ "serde_core",
+ "serde_derive",
+]
+
+[[package]]
+name = "serde_core"
+version = "1.0.229"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "67dca2c9c51e58a4791a4b1ed58308b39c64224d349a935ab5039aa360942a48"
+dependencies = [
+ "serde_derive",
+]
+
+[[package]]
+name = "serde_derive"
+version = "1.0.229"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e7a5d71263a5a7d47b41f6b3f06ba276f10cc18b0931f1799f710578e2309348"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "serde_json"
+version = "1.0.151"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c841b55ecdae098c80dcae9cf767f6f8a0c2cdb3416bbef72181df4d0fe73f14"
+dependencies = [
+ "itoa",
+ "memchr",
+ "serde",
+ "serde_core",
+ "zmij",
+]
+
+[[package]]
+name = "shelf"
+version = "0.1.0"
+dependencies = [
+ "serde",
+ "serde_json",
+]
+
+[[package]]
+name = "syn"
+version = "3.0.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "53e9bae58849f64dfa4f5d5ae372c8341f7305f82a3868709269343628b659a3"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "unicode-ident",
+]
+
+[[package]]
+name = "unicode-ident"
+version = "1.0.24"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e6e4313cd5fcd3dad5cafa179702e2b244f760991f45397d14d4ebf38247da75"
+
+[[package]]
+name = "zmij"
+version = "1.0.23"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "29666d0abbfad1e3dc4dcf6144730dd3a3ab225bbbdac83319345b1b44ccfc1b"
diff --git a/Cargo.toml b/Cargo.toml
index 34f425c..d4df6d2 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -4,3 +4,5 @@ version = "0.1.0"
 edition = "2024"
 
 [dependencies]
+serde = { version = "1.0.229", features = ["derive"] }
+serde_json = "1.0.151"
diff --git a/src/main.rs b/src/main.rs
index e7a11a9..afdf455 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,3 +1,65 @@
+use serde::{Deserialize, Serialize};
+use serde_json::Value;
+use std::{env, fs, path::Path, process};
+
 fn main() {
-    println!("Hello, world!");
+    let mut args = env::args();
+    let _binary = args.next();
+
+    while let Some(arg) = args.next() {
+        match arg.as_str() {
+            "add" => add(&mut args),
+            _other => println!("needs parameters"),
+        }
+    }
+    return;
+}
+
+fn deserialize_var() -> Library {
+    let key = "HOME";
+    let content: Library = match env::var(key) {
+        Ok(val) => match serde_json::from_str(&val) {
+            Ok(library) => library,
+            Err(..) => initialize_library(),
+        },
+        Err(..) => initialize_library(),
+    };
+    return content;
+}
+
+fn initialize_library() -> Library {
+    let default_shelf: Shelf = Shelf {
+        id: 0,
+        name: "default".to_string(),
+        content: Vec::new(),
+    };
+
+    let mut shelf_vec: Vec<Shelf> = Vec::new();
+    shelf_vec.push(default_shelf);
+    let default_library: Library = Library {
+        current_shelf: 0,
+        shelves: shelf_vec,
+    };
+    return default_library;
+}
+
+fn add(args: &mut env::Args) {
+    for file in args {
+        println!("Adding {}", &file);
+        let file_path = Path::new(&file);
+    }
+    process::exit(0)
+}
+
+#[derive(Default, Deserialize, Serialize)]
+struct Library {
+    current_shelf: u16,
+    shelves: Vec<Shelf>,
+}
+
+#[derive(Deserialize, Serialize)]
+struct Shelf {
+    id: u64,
+    name: String,
+    content: Vec<String>,
 }