diff --git a/DistroInfo.cs b/DistroInfo.cs
index 26c5224..3d46c3c 100644
--- a/DistroInfo.cs
+++ b/DistroInfo.cs
@@ -10,7 +10,9 @@ public class DistroInfo
       Family = "Debian",
       ImageName = "debian-11-genericcloud-amd64.qcow2",
       Url = "https://cloud.debian.org/images/cloud/bullseye/latest/",
-      Aliases = new[] { "Bullseye" }
+      Aliases = new[] { "Bullseye" },
+      ChecksumFile = "SHA512SUMS",
+      ChecksumType = "sha512"
     },
     new()
     {
@@ -18,15 +20,9 @@ public class DistroInfo
       Family = "Debian",
       ImageName = "debian-10-genericcloud-amd64.qcow2",
       Url = "https://cloud.debian.org/images/cloud/buster/latest/",
-      Aliases = new[] { "Buster" }
-    },
-    new()
-    {
-      Name = "Debian9",
-      Family = "Debian",
-      ImageName = "debian-9-genericcloud-amd64.qcow2",
-      Url = "https://cloud.debian.org/images/cloud/stretch/latest/",
-      Aliases = new[] { "Stretch" }
+      Aliases = new[] { "Buster" },
+      ChecksumFile = "SHA512SUMS",
+      ChecksumType = "sha512"
     },
     new()
     {
@@ -34,7 +30,9 @@ public class DistroInfo
       Family = "Ubuntu",
       ImageName = "bionic-server-cloudimg-amd64.img",
       Url = "https://cloud-images.ubuntu.com/bionic/current/",
-      Aliases = new[] { "Bionic Beaver", "Bionic" }
+      Aliases = new[] { "Bionic Beaver", "Bionic" },
+      ChecksumFile = "SHA256SUMS",
+      ChecksumType = "sha256"
     },
     new()
     {
@@ -42,15 +40,29 @@ public class DistroInfo
       Family = "Ubuntu",
       ImageName = "focal-server-cloudimg-amd64.img",
       Url = "https://cloud-images.ubuntu.com/focal/current/",
-      Aliases = new[] { "Focal Fossal", "Focal" }
+      Aliases = new[] { "Focal Fossal", "Focal" },
+      ChecksumFile = "SHA256SUMS",
+      ChecksumType = "sha256"
     },
     new()
     {
       Name = "Ubuntu2204",
       Family = "Ubuntu",
-      ImageName = "focal-server-cloudimg-amd64.img",
+      ImageName = "jammy-server-cloudimg-amd64.img",
       Url = "https://cloud-images.ubuntu.com/jammy/current/",
-      Aliases = new[] { "Jammy Jellyfish", "Jammy" }
+      Aliases = new[] { "Jammy Jellyfish", "Jammy" },
+      ChecksumFile = "SHA256SUMS",
+      ChecksumType = "sha256"
+    },
+    new()
+    {
+      Name = "Ubuntu2304",
+      Family = "Ubuntu",
+      ImageName = "lunar-server-cloudimg-amd64.img",
+      Url = "https://cloud-images.ubuntu.com/lunar/current/",
+      Aliases = new[] { "Lunar Lobster", "Lunar" },
+      ChecksumFile = "SHA256SUMS",
+      ChecksumType = "sha256"
     },
     new()
     {
@@ -58,15 +70,19 @@ public class DistroInfo
       Family = "Arch",
       ImageName = "Arch-Linux-x86_64-cloudimg.qcow2",
       Url = "https://geo.mirror.pkgbuild.com/images/latest/",
-      Aliases = Array.Empty<string>()
+      Aliases = Array.Empty<string>(),
+      ChecksumFile = "Arch-Linux-x86_64-cloudimg.qcow2.SHA256",
+      ChecksumType = "sha256"
     },
     new()
     {
       Name = "Fedora36",
       Family = "Fedora",
       ImageName = "Fedora-Cloud-Base-36-1.5.x86_64.qcow2",
-      Url = "https://download.fedoraproject.org/pub/fedora/linux/releases/37/Cloud/x86_64/images/",
-      Aliases = Array.Empty<string>()
+      Url = "https://download.fedoraproject.org/pub/fedora/linux/releases/36/Cloud/x86_64/images/",
+      Aliases = Array.Empty<string>(),
+      ChecksumFile = "Fedora-Cloud-36-1.5-x86_64-CHECKSUM",
+      ChecksumType = "sha256"
     },
     new()
     {
@@ -74,7 +90,9 @@ public class DistroInfo
       Family = "Fedora",
       ImageName = "Fedora-Cloud-Base-37-1.7.x86_64.qcow2",
       Url = "https://download.fedoraproject.org/pub/fedora/linux/releases/37/Cloud/x86_64/images/",
-      Aliases = Array.Empty<string>()
+      Aliases = Array.Empty<string>(),
+      ChecksumFile = "Fedora-Cloud-37-1.7-x86_64-CHECKSUM",
+      ChecksumType = "sha256"
     },
     new()
     {
@@ -82,7 +100,29 @@ public class DistroInfo
       Family = "RHEL",
       ImageName = "CentOS-7-x86_64-GenericCloud.qcow2",
       Url = "https://cloud.centos.org/centos/7/images/",
-      Aliases = Array.Empty<string>()
+      Aliases = Array.Empty<string>(),
+      ChecksumFile = "sha256sum.txt",
+      ChecksumType = "sha256"
+    },
+    new()
+    {
+      Name = "Rocky8",
+      Family = "RHEL",
+      ImageName = "Rocky-8-GenericCloud.latest.x86_64.qcow2",
+      Url = "https://download.rockylinux.org/pub/rocky/8/images/x86_64/",
+      Aliases = Array.Empty<string>(),
+      ChecksumFile = "CHECKSUM",
+      ChecksumType = "sha256"
+    },
+    new()
+    {
+      Name = "Rocky9",
+      Family = "RHEL",
+      ImageName = "Rocky-9-GenericCloud.latest.x86_64.qcow2",
+      Url = "https://download.rockylinux.org/pub/rocky/9/images/x86_64/",
+      Aliases = Array.Empty<string>(),
+      ChecksumFile = "CHECKSUM",
+      ChecksumType = "sha256"
     },
     new()
     {
@@ -90,7 +130,9 @@ public class DistroInfo
       Family = "RHEL",
       ImageName = "AlmaLinux-8-GenericCloud-latest.x86_64.qcow2",
       Url = "https://repo.almalinux.org/almalinux/8/cloud/x86_64/images/",
-      Aliases = Array.Empty<string>()
+      Aliases = Array.Empty<string>(),
+      ChecksumFile = "CHECKSUM",
+      ChecksumType = "sha256"
     },
     new()
     {
@@ -98,7 +140,9 @@ public class DistroInfo
       Family = "RHEL",
       ImageName = "AlmaLinux-9-GenericCloud-latest.x86_64.qcow2",
       Url = "https://repo.almalinux.org/almalinux/9/cloud/x86_64/images/",
-      Aliases = Array.Empty<string>()
+      Aliases = Array.Empty<string>(),
+      ChecksumFile = "CHECKSUM",
+      ChecksumType = "sha256"
     }
   };
 
@@ -114,10 +158,12 @@ public class DistroInfo
     return new DistroInfo()
     {
       Name = "local",
-      Aliases = Array.Empty<string>(),
       Family = "local",
+      ImageName = localImage.Name,
       Url = "file://" + localImageDirectory?.FullName,
-      ImageName = localImage.Name
+      Aliases = Array.Empty<string>(),
+      ChecksumFile = "",
+      ChecksumType = ""
     };
   }
 
@@ -126,4 +172,6 @@ public class DistroInfo
   public required string ImageName { get; set; }
   public required string Url { get; set; }
   public required string[] Aliases { get; set; }
-}
\ No newline at end of file
+  public required string ChecksumFile { get; set; }
+  public required string ChecksumType { get; set; }
+}
diff --git a/Dockerfile b/Dockerfile
index 6f94841..921e730 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -15,4 +15,5 @@ FROM scratch as output
 COPY --from=build /App/build/VmChamp /VmChamp
 
 FROM build as release
+COPY --from=build /App/build/VmChamp /VmChamp
 
diff --git a/Downloader.cs b/Downloader.cs
index 211a656..bf71beb 100644
--- a/Downloader.cs
+++ b/Downloader.cs
@@ -22,7 +22,7 @@ public async Task<FileInfo> DownloadAsync(DistroInfo distroInfo, bool force = fa
       return targetFile;
     }
 
-    var uri = new Uri($"{distroInfo.Url}/{distroInfo.ImageName}");
+    var uri = new Uri(new Uri(distroInfo.Url), distroInfo.ImageName);
 
     AnsiConsole.WriteLine($"Download: {uri}");
 
@@ -43,4 +43,4 @@ await AnsiConsole.Progress()
 
     return targetFile;
   }
-}
\ No newline at end of file
+}
diff --git a/README.md b/README.md
index 549ad49..8355cdc 100644
--- a/README.md
+++ b/README.md
@@ -72,3 +72,19 @@ Commands:
   list, ls, ps                   list all existing vms
   images, os                     get a list of all available os images
 ```
+
+## 🏗️ Build
+
+Simply use the included bash script as follows:
+
+```bash
+./build.sh <version> <output dir>
+```
+
+For example:
+
+```bash
+./build.sh 1.2.3 ~/build/
+```
+
+Output dir defaults to `./build/`.
diff --git a/build.sh b/build.sh
index ce18e94..a7f8a1c 100755
--- a/build.sh
+++ b/build.sh
@@ -1,11 +1,52 @@
 #!/bin/bash
 
+# exit on fail
+set -e
+
+# set colors
+RED="\033[0;31m"
+GREEN="\033[0;32m"
+BLUE="\033[0;34m"
+BOLD_BLUE='\033[1;34m'
+NC='\033[0m'
+
+# check shell args
 TARGET_VERSION="${1:-1.0.0}"
-OUTPUT_DIR="${2:-'/tmp'}"
+if [[ ! "$TARGET_VERSION" =~ ^([0-9].){2}[0-9] ]]; then
+    echo -e "${RED}❌ ${TARGET_VERSION} is not a valid version. Please use semantic versioning (e.g. \"1.2.3\")${NC}"
+    exit 1
+fi
+OUTPUT_DIR="${2:-build}"
+if [ ! -d "$OUTPUT_DIR" ]; then
+    mkdir -p "$OUTPUT_DIR"
+fi
+
+OUTPUT_DIR_REALPATH=$(realpath "$OUTPUT_DIR")
+
+echo -ne "${BLUE}🏗️ Docker remove old container...${NC}"
+docker rm -f vmchamp > /dev/null
+echo -e "${GREEN} done${NC}"
+
+# build image
+echo -e "${BOLD_BLUE}ℹ️ Build version: ${TARGET_VERSION}${NC}"
+echo -e "${BOLD_BLUE}ℹ️ Output dir: ${OUTPUT_DIR_REALPATH}/${NC}"
+echo ""
+
+echo -ne "${BLUE}🏗️ Docker build image...${NC}"
+docker build --build-arg TARGET_VERSION="$TARGET_VERSION" -t vmchamp:latest .
+echo -e "${GREEN} done${NC}"
+
+echo -ne "${BLUE}🏗️ Docker create container...${NC}"
+docker create --name vmchamp -q vmchamp:latest exit 0 > /dev/null
+echo -e "${GREEN} done${NC}"
+
+echo -ne "${BLUE}🏗️ Docker copy binary...${NC}"
+docker cp -q vmchamp:/VmChamp "$OUTPUT_DIR/VmChamp" > /dev/null
+echo -e "${GREEN} done${NC}"
 
-echo "BUILD VERSION $TARGET_VERSION"
+echo -ne "${BLUE}🏗️ Docker remove container...${NC}"
+docker rm -f vmchamp > /dev/null
+echo -e "${GREEN} done${NC}"
 
-ID=$(docker build --build-arg TARGET_VERSION="$TARGET_VERSION" . -q | cut -d ":" -f 2)
-docker run --name tmpbuild "$ID"
-docker cp tmpbuild:/App/build/VmChamp "$OUTPUT_DIR"
-docker rm tmpbuild
+echo ""
+echo -e "${GREEN}✅ Build successful${NC} - Binary available at $OUTPUT_DIR_REALPATH/VmChamp"