diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index 3447c343..cea46a48 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -20,14 +20,14 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v3
-    - run: cargo clippy -- -D warnings      
+    - run: cargo clippy -- -D warnings
 
   test:
     strategy:
       matrix:
         # https://docs.github.com/en/actions/using-jobs/choosing-the-runner-for-a-job#choosing-github-hosted-runners
         os: [windows-latest, ubuntu-latest, macos-13]
-    runs-on: ${{ matrix.os }}    
+    runs-on: ${{ matrix.os }}
     steps:
     - uses: actions/checkout@v3
     - run: cargo t
diff --git a/README.md b/README.md
index 8e1e79b6..fd949dde 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,17 @@
 # Data Block Set
+
 Data Block Set
+
+## For Developers
+
+Installation:
+
+```
+cargo install --git https://github.com/datablockset/blockset
+```
+
+Uninstallation:
+
+```
+cargo uninstall blockset
+```
\ No newline at end of file
diff --git a/blockset/src/base32.rs b/blockset/src/base32.rs
index 25a48cb0..7d409b70 100644
--- a/blockset/src/base32.rs
+++ b/blockset/src/base32.rs
@@ -1,4 +1,4 @@
-use crate::{ascii::to_ascii, bit_vec32::BitVec32};
+use crate::{ascii::to_ascii, bit_vec::BitVec};
 
 const fn to_base32(v: u8) -> char {
     //0               1
@@ -32,13 +32,13 @@ pub trait ToBase32 {
 }
 
 pub trait BitsToBase32 {
-    fn bits_to_base32(self) -> (String, BitVec32);
+    fn bits_to_base32(self) -> (String, BitVec);
 }
 
-impl<T: Iterator<Item = BitVec32>> BitsToBase32 for T {
-    fn bits_to_base32(self) -> (String, BitVec32) {
+impl<T: Iterator<Item = BitVec>> BitsToBase32 for T {
+    fn bits_to_base32(self) -> (String, BitVec) {
         let mut result = String::default();
-        let mut a = BitVec32::default();
+        let mut a = BitVec::default();
         for b in self {
             a.push(&mut |v| result.push(to_base32(v as u8)), 5, b)
         }
@@ -61,13 +61,13 @@ impl StrEx for str {
     }
 }
 
-impl FromBase32 for (Vec<u32>, BitVec32) {
+impl FromBase32 for (Vec<u32>, BitVec) {
     fn from_base32(i: &str) -> Option<Self> {
         let mut result = Vec::default();
-        let mut a = BitVec32::default();
+        let mut a = BitVec::default();
         for b in i.chars() {
             let v5 = from_base32(b)?;
-            a.push(&mut |v| result.push(v), 32, BitVec32::new(v5 as u32, 5));
+            a.push(&mut |v| result.push(v), 32, BitVec::new(v5 as u32, 5));
         }
         Some((result, a))
     }
diff --git a/blockset/src/bit_vec32.rs b/blockset/src/bit_vec.rs
similarity index 60%
rename from blockset/src/bit_vec32.rs
rename to blockset/src/bit_vec.rs
index 2b99807b..26f236b0 100644
--- a/blockset/src/bit_vec32.rs
+++ b/blockset/src/bit_vec.rs
@@ -1,25 +1,28 @@
 #[derive(Default)]
-pub struct BitVec32 {
-    pub v: u64,
+pub struct BitVec {
+    pub value: u64,
     pub len: u8,
 }
 
-impl BitVec32 {
+impl BitVec {
     pub const fn new(v: u32, len: u8) -> Self {
-        Self { v: v as u64, len }
+        Self {
+            value: v as u64,
+            len,
+        }
     }
-    pub fn push(&mut self, f: &mut impl FnMut(u32), size: u8, b: BitVec32) {
+    pub fn push(&mut self, f: &mut impl FnMut(u32), size: u8, b: BitVec) {
         assert!(size <= 32);
-        self.v |= b.v << self.len;
+        self.value |= b.value << self.len;
         self.len += b.len;
         let mask = (1 << size) - 1;
         loop {
             if self.len < size {
                 return;
             }
-            f((self.v & mask) as u32);
+            f((self.value & mask) as u32);
             self.len -= size;
-            self.v >>= size;
+            self.value >>= size;
         }
     }
 }
diff --git a/blockset/src/digest224.rs b/blockset/src/digest224.rs
index d9ea4383..858a76c3 100644
--- a/blockset/src/digest224.rs
+++ b/blockset/src/digest224.rs
@@ -2,7 +2,7 @@ use std::iter::once;
 
 use crate::{
     base32::{BitsToBase32, FromBase32, StrEx, ToBase32},
-    bit_vec32::BitVec32,
+    bit_vec::BitVec,
 };
 
 pub type Digest224 = [u32; 7];
@@ -19,13 +19,13 @@ impl Digest224Ex for &Digest224 {
 
 impl ToBase32 for &Digest224 {
     fn to_base32(self) -> String {
-        let (result, a) = self
+        let (result, BitVec { value, len }) = self
             .iter()
-            .map(|x| BitVec32::new(*x, 32))
-            .chain(once(BitVec32::new(self.parity_bit() as u32, 1)))
+            .map(|x| BitVec::new(*x, 32))
+            .chain(once(BitVec::new(self.parity_bit() as u32, 1)))
             .bits_to_base32();
-        assert_eq!(a.len, 0);
-        assert_eq!(a.v, 0);
+        assert_eq!(len, 0);
+        assert_eq!(value, 0);
         assert_eq!(result.len(), 45);
         result
     }
@@ -33,15 +33,15 @@ impl ToBase32 for &Digest224 {
 
 impl FromBase32 for Digest224 {
     fn from_base32(i: &str) -> Option<Self> {
-        let (vec, a) = i.from_base32()?;
+        let (vec, BitVec { value, len }) = i.from_base32()?;
         if vec.len() != 7 {
             return None;
         }
-        assert_eq!(a.len, 1);
-        assert_eq!(a.v | 1, 1);
+        assert_eq!(len, 1);
+        assert_eq!(value | 1, 1);
         let mut result = Digest224::default();
         result.copy_from_slice(&vec);
-        if a.v as u8 != result.parity_bit() {
+        if value != result.parity_bit() as u64 {
             return None;
         }
         Some(result)
diff --git a/blockset/src/lib.rs b/blockset/src/lib.rs
index 30de1f26..fd07368c 100644
--- a/blockset/src/lib.rs
+++ b/blockset/src/lib.rs
@@ -1,7 +1,7 @@
 mod app;
 mod ascii;
 mod base32;
-mod bit_vec32;
+mod bit_vec;
 mod digest224;
 mod io;
 mod sha224;