diff --git a/README.md b/README.md
index 7907454..35a70c4 100644
--- a/README.md
+++ b/README.md
@@ -16,7 +16,6 @@ list-old-packages
 ├── --list-debug
 └── repo_path*
 run
-├── --delete-debug
 ├── --dry-run
 ├── --only-delete
 └── repo_path*
@@ -45,11 +44,25 @@ Arguments:
 - `--dry-run`: Do a dry run
 - `--only-delete`: Only delete files, don't modify the repo files from them (default: false)
   - Without this argument, parcut will try to remove and add the relevant packages using `repo-add` and `repo-remove`, meaning it optionally depends on those programs.
-    - <small>These are needed to run the repo anyways, so you *should* have them installed already.</small>
-- `--delete-debug`: Delete debug symbol packages (default: true)
+    - <small>As long as you're on Arch, this will be installed, as it's part of pacman. Plus, if you're running a repo, you need these anyways.</small>
+
+## Exit codes
+
+- `0`: Completed successfully
+- `10`: Failed to remove old package from repo - probably missing write perms on the database.
+- `11`: Permission denied when trying to delete a package - missing write perms on the package.
+- `12`: Failed to add new package to repo - again, probably missing write perms on the database.
 
 ## Notes and credits
 
 This was inspired by [guydunigo/remove_old_arch_pkgs](https://github.com/guydunigo/remove_old_arch_pkgs), which I used at first, but ran into some bugs with.
 
-I also ~~stole~~ borrowed a bit of code from [blend-os/blend](https://github.com/blend-os/blend) for coloring the terminal.
+I also ~~stole~~ borrowed and modified a bit of code from [blend-os/blend](https://github.com/blend-os/blend) for coloring the terminal.
+
+## Notes and limitations
+
+This requires a repo db file to already exist; if the repo doesn't already exist, you can just create an empty file like this instead: `touch reponame.db`
+
+### Development
+
+This uses `unittest` for testing; tests can be run by running `python3 -m unittest`. Running `test.py` normally will generate data to test the program, which is also generated automatically at the start of every test.
diff --git a/colors.py b/colors.py
new file mode 100644
index 0000000..65dec9e
--- /dev/null
+++ b/colors.py
@@ -0,0 +1,71 @@
+# copied from https://github.com/blend-os/blend, and modified
+class colors:
+    reset = '\x1b[0m'
+    bold = '\x1b[01m'
+    disable = '\x1b[02m'
+    underline = '\x1b[04m'
+    reverse = '\x1b[07m'
+    strikethrough = '\x1b[09m'
+    invisible = '\x1b[08m'
+
+    class fg:
+        black = '\x1b[30m'
+        red = '\x1b[31m'
+        green = '\x1b[32m'
+        yellow = '\x1b[33m'
+        blue = '\x1b[34m'
+        magenta = '\x1b[35m'
+        cyan = '\x1b[36m'
+        white = '\x1b[37m'
+        default = '\x1b[39m'
+
+        # bright colors based off this: https://gist.github.com/nfejzic/6f3788b3841cb0d7ac11584c6b33b5b9
+        class bright:
+            black = '\x1b[90m'
+            red = '\x1b[91m'
+            green = '\x1b[92m'
+            yellow = '\x1b[93m'
+            blue = '\x1b[94m'
+            magenta = '\x1b[95m'
+            cyan = '\x1b[96m'
+            white = '\x1b[97m'
+
+        rainbow = [
+            bright.red,
+            yellow,
+            bright.yellow,
+            bright.green,
+            bright.cyan,
+            blue,
+            magenta
+        ]
+
+    class bg:
+        black = '\x1b[40m'
+        red = '\x1b[41m'
+        green = '\x1b[42m'
+        yellow = '\x1b[43m'
+        blue = '\x1b[44m'
+        magenta = '\x1b[45m'
+        cyan = '\x1b[46m'
+        white = '\x1b[47m'
+
+        class bright:
+            black = '\x1b[40m'
+            red = '\x1b[41m'
+            green = '\x1b[42m'
+            yellow = '\x1b[43m'
+            blue = '\x1b[44m'
+            magenta = '\x1b[45m'
+            cyan = '\x1b[46m'
+            white = '\x1b[47m'
+
+        rainbow = [
+            bright.red,
+            yellow,
+            bright.yellow,
+            bright.green,
+            bright.cyan,
+            blue,
+            magenta
+        ]
diff --git a/repo-cleanup.py b/repo-cleanup.py
index 3f6cd4a..d42dc94 100755
--- a/repo-cleanup.py
+++ b/repo-cleanup.py
@@ -2,6 +2,9 @@
 from natsort import natsorted
 import click
 import glob
+from subprocess import getstatusoutput
+from colors import colors
+from os import remove
 
 
 @click.group('cli')
@@ -17,15 +20,70 @@ def cli():
     default=False,
     help="Only delete files, don't run repo-remove and repo-add on their old and new versions (default: false)"
 )
-@click.option(
-    '--delete-debug',
-    is_flag=True,
-    default=False,
-    help='Delete debug symbol packages (default: false)'
-)
 @click.argument('repo_path')
-def run(repo_path, dry_run=False, only_delete=False, delete_debug=False):
-    get_old_packages_runner(repo_path)
+def run(repo_path, dry_run=False, only_delete=False):
+    if dry_run:
+        print(
+            f'{colors.bg.bright.blue}{colors.fg.black}Dry run mode enabled; no changes will be made{colors.reset}\n'
+        )
+    old_packages = get_old_packages(repo_path)
+    repo_name = HelperFunctions.get_repo_name(repo_path)
+
+    if not only_delete:
+        print('=== Removing old packages ===')
+        for pkg in old_packages:
+            print(f'Removing {pkg}...')
+            if not dry_run:
+                output = getstatusoutput(
+                    f'repo-remove {repo_path}/{repo_name}.db.tar.zst {repo_path}/{pkg}'
+                )
+                if output[0] != 0:
+                    print(
+                        f'{colors.bg.red}[ERROR]{colors.reset} failed to remove {pkg}'
+                    )
+                    print(f'Exit code: {output[0]}')
+                    print(f'Command output:\n{output[1]}')
+                    exit(10)
+
+        print(
+            f'{colors.fg.green}✅ Successfully removed old packages from repo{colors.reset}'
+        )
+        print()
+
+    print('=== Deleting old packages ===')
+    for pkg in old_packages:
+        print(f'Deleting {pkg}...')
+        if not dry_run:
+            try:
+                remove(f'{repo_path}/{pkg}')
+            except Exception as e:
+                print(f'{colors.bg.red}[ERROR]{colors.reset} failed to delete {pkg}')
+                print(f'Error: {e}')
+                exit(11)
+
+    print(f'{colors.fg.green}✅ Successfully deleted packages{colors.reset}')
+    print()
+
+    new_packages = get_new_packages(repo_path)
+    if not only_delete:
+        print('=== Adding new packages ===')
+        for pkg in new_packages:
+            print(f'Adding {pkg}...')
+            if not dry_run:
+                output = getstatusoutput(
+                    f'repo-add {repo_path}/{repo_name}.db.tar.zst {repo_path}/{pkg}'
+                )
+                if output[0] != 0:
+                    print(f'{colors.bg.red}[ERROR]{colors.reset} failed to add {pkg}')
+                    print(f'Exit code: {output[0]}')
+                    print(f'Command output:\n{output[1]}')
+                    exit(12)
+        print(
+            f'{colors.fg.green}✅ Successfully added new packages to repo{colors.reset}'
+        )
+        print()
+
+    print(f'✨ {colors.bg.green}Repo successfully updated{colors.reset} ✨')
 
 
 @cli.command('list-old-packages')
@@ -60,11 +118,9 @@ def get_old_packages(repo_path, list_debug=True):
         old_no_debug = natsorted(no_debug)[:1]
         old_packages.extend(old_no_debug)
         for item in old_no_debug:
-            if (
-                list_debug
-                and item.replace(pkg_name, f'{pkg_name}-debug') in pkg_map[pkg_name]
-            ):
-                old_packages.append(item.replace(pkg_name, f'{pkg_name}-debug'))
+            debug_pkg = item.replace(pkg_name, f'{pkg_name}-debug')
+            if list_debug and debug_pkg in pkg_map[pkg_name]:
+                old_packages.append(debug_pkg)
 
     return natsorted(old_packages)
 
@@ -126,11 +182,11 @@ class HelperFunctions:
 
         Example:
         {
-        'swayfx': [
-            'swayfx-0.4-3-x86_64.pkg.tar.zst',
-            'swayfx-debug-0.4-3-x86_64.pkg.tar.zst',
-            'swayfx-0.3.2-1-x86_64.pkg.tar.zst
-        ]
+            'swayfx': [
+                'swayfx-0.4-3-x86_64.pkg.tar.zst',
+                'swayfx-debug-0.4-3-x86_64.pkg.tar.zst',
+                'swayfx-0.3.2-1-x86_64.pkg.tar.zst
+            ]
         }
         '''
         files = HelperFunctions.get_package_list(repo_path)
@@ -180,53 +236,14 @@ class HelperFunctions:
         files = [f[f.rfind('/') + 1 :] for f in files]
         repo_name = HelperFunctions.get_repo_name(repo_path)
 
-        files.remove(f'{repo_name}.db.tar.zst')
-        files.remove(f'{repo_name}.files.tar.zst')
+        try:
+            files.remove(f'{repo_name}.db.tar.zst')
+            files.remove(f'{repo_name}.files.tar.zst')
+        except FileNotFoundError:
+            pass
 
         return natsorted(files)
 
 
 if __name__ == '__main__':
     cli()
-
-
-class colors:
-    reset = '\x1b[0m'
-    bold = '\x1b[01m'
-    disable = '\x1b[02m'
-    underline = '\x1b[04m'
-    reverse = '\x1b[07m'
-    strikethrough = '\x1b[09m'
-    invisible = '\x1b[08m'
-
-    class fg:
-        black = '\x1b[30m'
-        red = '\x1b[31m'
-        green = '\x1b[32m'
-        orange = '\x1b[33m'
-        blue = '\x1b[34m'
-        purple = '\x1b[35m'
-        cyan = '\x1b[36m'
-        lightgrey = '\x1b[37m'
-        darkgrey = '\x1b[90m'
-        lightred = '\x1b[91m'
-        lightgreen = '\x1b[92m'
-        yellow = '\x1b[93m'
-        lightblue = '\x1b[94m'
-        pink = '\x1b[95m'
-        lightcyan = '\x1b[96m'
-
-        rainbow = [lightred, orange, yellow, lightgreen, lightcyan, blue, purple]
-
-    class bg:
-        black = '\x1b[40m'
-        red = '\x1b[41m'
-        green = '\x1b[42m'
-        orange = '\x1b[43m'
-        blue = '\x1b[44m'
-        purple = '\x1b[45m'
-        cyan = '\x1b[46m'
-        lightgrey = '\x1b[47m'
-
-
-fg = colors.fg()
diff --git a/test.py b/test.py
index 2624e43..faaf3ff 100644
--- a/test.py
+++ b/test.py
@@ -1,6 +1,7 @@
 import unittest
 import os
 from pathlib import Path
+from natsort import natsorted
 
 repo_cleanup = __import__('repo-cleanup')
 repo_path = 'repo/'
@@ -33,43 +34,100 @@ def create_test_data():
         touch(f'{repo_path}/{f}')
 
 
+# NOTE: Add lists are wrapped in natsorted() so that they can be easily manually edited,
+# rather than having to run and update them manually each time a test is updated
 class Tests(unittest.TestCase):
-    def test_list_old(self):
+    def test_run(self):
         create_test_data()
-        result = repo_cleanup.get_old_packages(repo_path)
-        expected = [
-            'example-program-8.4.3-5-x86_64.pkg.tar.zst',
-            'test-debug-r87.e176baf-1-x86_64.pkg.tar.zst',
-            'test-r87.e176baf-1-x86_64.pkg.tar.zst'
-        ]
-        self.assertEqual(result, expected)
-
-    def test_list_new(self):
-        create_test_data()
-        result = repo_cleanup.get_new_packages(repo_path)
-        expected = [
-            'example-program-10.2.1-2-x86_64.pkg.tar.zst',
-            'example-program-debug-10.2.1-2-x86_64.pkg.tar.zst',
-            'test-debug-r100.ab937ef-1-x86_64.pkg.tar.zst',
-            'test-r100.ab937ef-1-x86_64.pkg.tar.zst'
-        ]
-        self.assertEqual(result, expected)
-
-    def test_package_map(self):
-        create_test_data()
-        result = repo_cleanup.HelperFunctions.package_map(repo_path)
-        expected = {
-            'example-program': [
+        # to run a click command - https://stackoverflow.com/questions/48619517/call-a-click-command-from-code
+        repo_cleanup.run([repo_path, '--only-delete'], standalone_mode=False)
+        result = natsorted(os.listdir(repo_path))
+        expected = natsorted(
+            [
                 'example-program-8.4.3-5-x86_64.pkg.tar.zst',
                 'example-program-10.2.1-2-x86_64.pkg.tar.zst',
-                'example-program-debug-10.2.1-2-x86_64.pkg.tar.zst'
-            ],
-            'test': [
+                'example-program-debug-10.2.1-2-x86_64.pkg.tar.zst',
+                'repo.db',
+                'repo.db.tar.zst',
+                'repo.files',
+                'repo.files.tar.zst',
                 'test-debug-r87.e176baf-1-x86_64.pkg.tar.zst',
                 'test-debug-r100.ab937ef-1-x86_64.pkg.tar.zst',
                 'test-r87.e176baf-1-x86_64.pkg.tar.zst',
                 'test-r100.ab937ef-1-x86_64.pkg.tar.zst'
             ]
+        )
+
+    def test_list_old(self):
+        create_test_data()
+        result = repo_cleanup.get_old_packages(repo_path)
+        expected = natsorted(
+            [
+                'example-program-8.4.3-5-x86_64.pkg.tar.zst',
+                'test-debug-r87.e176baf-1-x86_64.pkg.tar.zst',
+                'test-r87.e176baf-1-x86_64.pkg.tar.zst'
+            ]
+        )
+        self.assertEqual(result, expected)
+
+    def test_list_old_no_debug(self):
+        create_test_data()
+        result = repo_cleanup.get_old_packages(repo_path, list_debug=False)
+        expected = natsorted(
+            [
+                'example-program-8.4.3-5-x86_64.pkg.tar.zst',
+                'test-r87.e176baf-1-x86_64.pkg.tar.zst'
+            ]
+        )
+        self.assertEqual(result, expected)
+
+    def test_list_new(self):
+        create_test_data()
+        result = repo_cleanup.get_new_packages(repo_path)
+        expected = natsorted(
+            [
+                'example-program-10.2.1-2-x86_64.pkg.tar.zst',
+                'example-program-debug-10.2.1-2-x86_64.pkg.tar.zst',
+                'test-debug-r100.ab937ef-1-x86_64.pkg.tar.zst',
+                'test-r100.ab937ef-1-x86_64.pkg.tar.zst'
+            ]
+        )
+        self.assertEqual(result, expected)
+
+    def test_list_new_no_debug(self):
+        create_test_data()
+        result = repo_cleanup.get_new_packages(repo_path)
+        expected = natsorted(
+            [
+                'example-program-10.2.1-2-x86_64.pkg.tar.zst',
+                'example-program-debug-10.2.1-2-x86_64.pkg.tar.zst',
+                'test-debug-r100.ab937ef-1-x86_64.pkg.tar.zst',
+                'test-r100.ab937ef-1-x86_64.pkg.tar.zst'
+            ]
+        )
+        self.assertEqual(result, expected)
+
+    def test_package_map(self):
+        create_test_data()
+        result = repo_cleanup.HelperFunctions.package_map(repo_path)
+        # only the lists are sorted, not the keys, so it should be manually run then verified it's correct if the keys are updated
+        # you can change the items in the list safely, though
+        expected = {
+            'example-program': natsorted(
+                [
+                    'example-program-8.4.3-5-x86_64.pkg.tar.zst',
+                    'example-program-10.2.1-2-x86_64.pkg.tar.zst',
+                    'example-program-debug-10.2.1-2-x86_64.pkg.tar.zst'
+                ]
+            ),
+            'test': natsorted(
+                [
+                    'test-debug-r87.e176baf-1-x86_64.pkg.tar.zst',
+                    'test-debug-r100.ab937ef-1-x86_64.pkg.tar.zst',
+                    'test-r87.e176baf-1-x86_64.pkg.tar.zst',
+                    'test-r100.ab937ef-1-x86_64.pkg.tar.zst'
+                ]
+            )
         }
         self.assertEqual(result, expected)