diff --git a/CHANGELOG.md b/CHANGELOG.md
index de78ba1..b44a92e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,11 @@ The first release is [3.0.0] because this is actually the third major version (c
 
 ## [Unreleased]
 ### Added
+- The software version displayed has now a `.Dev` appended when running from script (_e.g._ 3.1.0.Dev) to differentiate from an actual binary executable. The `.Dev` thus implies that the
+  running version of the software could not correspond to a particular release.
+- The `*.spec` files files can be executed without copying the source code in
+  their folder.
+- Add a link to the GitHub repository in the action bar.
 - Add support for signals with multiple-value acf ([#9](https://github.com/AresValley/Artemis/pull/9)). This breaks the backward compatibility because the database changed structure.
 
 ### Fixed
diff --git a/README.md b/README.md
index 5e210c9..63e677c 100644
--- a/README.md
+++ b/README.md
@@ -12,7 +12,8 @@ In short, ARTEMIS is a signals hunter software and a useful aid for radio listen
 
   - [Run the software](#Run-the-software)
     - [Run from binary](#Run-from-binary)
-    - [Run from source code](#Run-from-source-code-OS-independent)
+    - [Run from source code](#Run-from-source-code)
+    - [Compile from source code](#Compile-from-source-code)
   - [Database](#database)
     - [Syntax](#syntax)
     - [Multiple Items fields (Location, Modulation)](#multiple-items-fields-location-modulation)
@@ -49,6 +50,9 @@ pip install -r  requirements.txt --user
 python3 artemis.py
 ```
 
+### Compile from source code
+If you want to compile Artemis yourself from the source code follow the instructions in the [spec_files/README](spec_files/README.md) file.
+
 ## Database
 
 The database (db.csv) is directly extracted from sigidwiki.com with a DB parser and reworked to a standard format defined as follow. Artemis DB is a human-readable csv file where the delimiter is the character `*` (Asterisk, Unicode: U+002A). The new entry (separation between signals) is the End Of Line (EOL) escape sequence `\n`. Every signal is directly connected to spectra and audio sample stored in **Spectra** and **Audio** folders, respectively. Every signal is composed of 12 columns:
diff --git a/spec_files/Linux/Artemis.spec b/spec_files/Linux/Artemis.spec
index 7a14277..7100c0a 100644
--- a/spec_files/Linux/Artemis.spec
+++ b/spec_files/Linux/Artemis.spec
@@ -1,13 +1,20 @@
 # -*- mode: python -*-
 
+import glob
+import os
+
+
 block_cipher = None
 
-import glob, os
 
-data_file = [(f, '.') for f in glob.glob('*.[pu][yi]') if f != "artemis.py"]
-data_file.append(('cacert.pem', '.'))
+SRC_PATH = "../../src/"
 
-a = Analysis(['artemis.py'],
+data_file = [
+    (f, '.') for f in glob.glob(SRC_PATH + '*.[pu][yi]')
+    if f.split('/')[-1] != "artemis.py"
+].append((SRC_PATH + 'cacert.pem', '.'))
+
+a = Analysis([SRC_PATH + 'artemis.py'],  # noqa: 821
              pathex=[os.getcwd()],
              binaries=[],
              datas=data_file,
@@ -19,9 +26,10 @@ a = Analysis(['artemis.py'],
              win_private_assemblies=False,
              cipher=block_cipher,
              noarchive=False)
-pyz = PYZ(a.pure, a.zipped_data,
-             cipher=block_cipher)
-exe = EXE(pyz,
+pyz = PYZ(a.pure,  # noqa: 821
+          a.zipped_data,
+          cipher=block_cipher)
+exe = EXE(pyz,  # noqa: 821
           a.scripts,
           a.binaries,
           a.zipfiles,
diff --git a/spec_files/Linux/Artemis_onedir.spec b/spec_files/Linux/Artemis_onedir.spec
index ff4700b..29c09b9 100644
--- a/spec_files/Linux/Artemis_onedir.spec
+++ b/spec_files/Linux/Artemis_onedir.spec
@@ -1,13 +1,20 @@
 # -*- mode: python -*-
 
+import glob
+import os
+
+
 block_cipher = None
 
-import glob, os
 
-data_file = [(f, '.') for f in glob.glob('*.[pu][yi]') if f != "artemis.py"]
-data_file.append(('cacert.pem', '.'))
+SRC_PATH = "../../src/"
 
-a = Analysis(['artemis.py'],
+data_file = [
+    (f, '.') for f in glob.glob(SRC_PATH + '*.[pu][yi]')
+    if f.split('/')[-1] != "artemis.py"
+].append((SRC_PATH + 'cacert.pem', '.'))
+
+a = Analysis([SRC_PATH + 'artemis.py'],  # noqa: 821
              pathex=[os.getcwd()],
              binaries=[],
              datas=data_file,
@@ -19,9 +26,10 @@ a = Analysis(['artemis.py'],
              win_private_assemblies=False,
              cipher=block_cipher,
              noarchive=False)
-pyz = PYZ(a.pure, a.zipped_data,
-             cipher=block_cipher)
-exe = EXE(pyz,
+pyz = PYZ(a.pure,  # noqa: 821
+          a.zipped_data,
+          cipher=block_cipher)
+exe = EXE(pyz,  # noqa: 821
           a.scripts,
           [],
           exclude_binaries=True,
@@ -31,7 +39,7 @@ exe = EXE(pyz,
           strip=False,
           upx=True,
           console=False)
-coll = COLLECT(exe,
+coll = COLLECT(exe,  # noqa: 821
                a.binaries,
                a.zipfiles,
                a.datas,
diff --git a/spec_files/README.md b/spec_files/README.md
index 0cb2564..8412c63 100644
--- a/spec_files/README.md
+++ b/spec_files/README.md
@@ -6,7 +6,7 @@
 
 ## ARTEMIS 3 .SPEC FILES
 
-Artemis 3 .spec files are used by the package **pyinstaller** (https://www.pyinstaller.org/) to build a single standalone executable (or a one-dir package). The extreme versatility of this package is the fact that every external dependency is already embedded into the bundle. The interpreter of Python 3 is also included.
+Artemis 3 .spec files are used by the package **pyinstaller** (https://www.pyinstaller.org/) to build a single standalone executable (or a one-dir package). Every external dependency is already embedded into the bundle. The interpreter of Python 3 is also included.
 
 ## Requirements
 - Python 3.7.0+
@@ -15,37 +15,24 @@ Artemis 3 .spec files are used by the package **pyinstaller** (https://www.pyins
 **IMPORTANT:** *To generate the standalone and the one-dir package, you must use an operating system that coincides with the target one (pyinstaller doesn't allow cross-compilation).* 
 
 ## Package Building (standalone aka one-file, high portability, **suggested**)
-1. Download a fresh copy of the git repository.
-2. Choose the target OS in `spec_files` folder and copy the whole content (except the Artemis_onedir.spec file) into `src`
-3. Open a terminal into `src` and run:
+1. Download/clone the git repository.
+2. In the `spec_files/<your OS>` folder open a terminal and type
 ```
 pyinstaller Artemis.spec
 ```
-4. Copy the `src/themes` folder into `src/dist`.
-5. The ready-to-use compiled software is now present into `src/dist` folder.
+3. An Artemis executable should be produced in the `dist/` folder. The `build/` folder
+   can be deleted.
 
 ## Package Building (one-dir, shorter startup time, low portability)
-1. Download a fresh copy of the git repository.
-2. Choose the target OS in `spec_files` folder and copy the whole content (except the Artemis.spec file) into `src`
-3. Open a terminal into `src` and run:
+1. Download/clone the git repository.
+2. In the `spec_files/<your OS>` folder open a terminal and type
 ```
 pyinstaller Artemis_onedir.spec
 ```
-4. Copy the `src/themes` folder into `src/dist/Artemis`.
-5. The ready-to-use compiled software is now present into `src/dist` folder as a bundle. All the libraries are clearly present.
+3. An Artemis executable should be produced in  `dist/Artemis/`. The `build/` can
+   be deleted.
 
-## License
-This program (ARTEMIS 3, 2014-2019) is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
 
-This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License along with this program. If not, see: www.gnu.org/licenses
-
-## Thanks
-* **Marco Dalla Tiezza** - *Artemis I-II developer, DB parsing, Website*
-* [**Alessandro Ceccato**](https://github.com/alessandro90 "GitHub profile") - *Artemis III lead developer*
-* **Paolo Romani (IZ1MLL)** - *Lead β Tester, RF specialist*
-* **Carl Colena** - *Sigidwiki admin, β Tester, Signals expert*
-* **Marco Bortoli** - *macOS deployment, β Tester*
-* **Pierpaolo Pravatto** - *Wiki page, β Tester*
-* **Francesco Capostagno, Luca, Pietro** - *β Tester*
+You can save a copy of the executable in a folder of you choice. At startup it will ask you to download
+the database and also warn you that the `themes` folder is missing. To avoid this,
+copy `src/Data` and `src/themes` in the folder containing the executable.
diff --git a/spec_files/Windows/Artemis_onedir.spec b/spec_files/Windows/Artemis_onedir.spec
index fa7599b..1605901 100644
--- a/spec_files/Windows/Artemis_onedir.spec
+++ b/spec_files/Windows/Artemis_onedir.spec
@@ -1,13 +1,20 @@
 # -*- mode: python -*-
 
+import glob
+import os
+
+
 block_cipher = None
 
-import glob,os
 
-data_file = [(f, '.') for f in glob.glob('*.[pu][yi]') if f != "artemis.py"]
-data_file.append(('cacert.pem', '.'))
+SRC_PATH = "../../src/"
 
-a = Analysis(['artemis.py'],
+data_file = [
+    (f, '.') for f in glob.glob(SRC_PATH + '*.[pu][yi]')
+    if f.split('/')[-1] != "artemis.py"
+].append((SRC_PATH + 'cacert.pem', '.'))
+
+a = Analysis(SRC_PATH + ['artemis.py'],  # noqa: 821
              pathex=[os.getcwd()],
              binaries=[],
              datas=data_file,
@@ -19,9 +26,10 @@ a = Analysis(['artemis.py'],
              win_private_assemblies=False,
              cipher=block_cipher,
              noarchive=False)
-pyz = PYZ(a.pure, a.zipped_data,
-             cipher=block_cipher)
-exe = EXE(pyz,
+pyz = PYZ(a.pure,  # noqa: 821
+          a.zipped_data,
+          cipher=block_cipher)
+exe = EXE(pyz,  # noqa: 821
           a.scripts,
           [],
           exclude_binaries=True,
@@ -30,8 +38,9 @@ exe = EXE(pyz,
           bootloader_ignore_signals=False,
           strip=False,
           upx=True,
-          console=False , icon='Artemis3.ico')
-coll = COLLECT(exe,
+          console=False,
+          icon='Artemis3.ico')
+coll = COLLECT(exe,  # noqa: 821
                a.binaries,
                a.zipfiles,
                a.datas,
diff --git a/spec_files/Windows/artemis.spec b/spec_files/Windows/artemis.spec
index c1c9c33..869eae8 100644
--- a/spec_files/Windows/artemis.spec
+++ b/spec_files/Windows/artemis.spec
@@ -1,13 +1,20 @@
 # -*- mode: python -*-
 
+import glob
+import os
+
+
 block_cipher = None
 
-import glob,os
 
-data_file = [(f, '.') for f in glob.glob('*.[pu][yi]') if f != "artemis.py"]
-data_file.append(('cacert.pem', '.'))
+SRC_PATH = "../../src/"
 
-a = Analysis(['artemis.py'],
+data_file = [
+    (f, '.') for f in glob.glob(SRC_PATH + '*.[pu][yi]')
+    if f.split('/')[-1] != "artemis.py"
+].append((SRC_PATH + 'cacert.pem', '.'))
+
+a = Analysis([SRC_PATH + 'artemis.py'],  # noqa: 821
              pathex=[os.getcwd()],
              binaries=[],
              datas=data_file,
@@ -19,9 +26,10 @@ a = Analysis(['artemis.py'],
              win_private_assemblies=False,
              cipher=block_cipher,
              noarchive=False)
-pyz = PYZ(a.pure, a.zipped_data,
-             cipher=block_cipher)
-exe = EXE(pyz,
+pyz = PYZ(a.pure,  # noqa: 821
+          a.zipped_data,
+          cipher=block_cipher)
+exe = EXE(pyz,  # noqa: 821
           a.scripts,
           a.binaries,
           a.zipfiles,
@@ -33,4 +41,5 @@ exe = EXE(pyz,
           strip=False,
           upx=True,
           runtime_tmpdir=None,
-          console=False , icon='Artemis3.ico')
+          console=False,
+          icon='Artemis3.ico')
diff --git a/spec_files/macOS/Artemis.spec b/spec_files/macOS/Artemis.spec
index e446e61..ce6eaac 100644
--- a/spec_files/macOS/Artemis.spec
+++ b/spec_files/macOS/Artemis.spec
@@ -1,13 +1,20 @@
 # -*- mode: python -*-
 
+import glob
+import os
+
+
 block_cipher = None
-import glob, os
 
-data_file = [(f, '.') for f in glob.glob('*.[pu][yi]') if f != "artemis.py"]
-data_file.append(('themes','./themes'))
-data_file.append(('cacert.pem', '.'))
 
-a = Analysis(['artemis.py'],
+SRC_PATH = "../../src/"
+
+data_file = [
+    (f, '.') for f in glob.glob(SRC_PATH + '*.[pu][yi]')
+    if f.split('/')[-1] != "artemis.py"
+].extend(((SRC_PATH + 'cacert.pem', '.'), ('themes', './themes')))
+
+a = Analysis([SRC_PATH + 'artemis.py'],  # noqa: 821
              pathex=[os.getcwd()],
              binaries=[],
              datas=data_file,
@@ -19,9 +26,10 @@ a = Analysis(['artemis.py'],
              win_private_assemblies=False,
              cipher=block_cipher,
              noarchive=False)
-pyz = PYZ(a.pure, a.zipped_data,
-             cipher=block_cipher)
-exe = EXE(pyz,
+pyz = PYZ(a.pure,  # noqa: 821
+          a.zipped_data,
+          cipher=block_cipher)
+exe = EXE(pyz,  # noqa: 821
           a.scripts,
           [],
           exclude_binaries=True,
@@ -30,15 +38,15 @@ exe = EXE(pyz,
           bootloader_ignore_signals=False,
           strip=False,
           upx=True,
-          console=False )
-coll = COLLECT(exe,
+          console=False)
+coll = COLLECT(exe,  # noqa: 821
                a.binaries,
                a.zipfiles,
                a.datas,
                strip=False,
                upx=True,
                name='Artemis')
-app = BUNDLE(coll,
+app = BUNDLE(coll,  # noqa: 821
              name='Artemis.app',
              icon='Artemis3.icns',
              bundle_identifier=None)
diff --git a/src/artemis.py b/src/artemis.py
index 65eec88..fc06d96 100644
--- a/src/artemis.py
+++ b/src/artemis.py
@@ -43,7 +43,14 @@ from utilities import (checksum_ok,
 
 # import default_imgs_rc
 
-__VERSION__ = "3.0.1"
+__LATEST_VERSION__ = "3.0.1"
+
+if hasattr(sys, '_MEIPASS'):
+    __VERSION__ = __LATEST_VERSION__
+else:
+    __VERSION__ = __LATEST_VERSION__ + ".Dev"
+
+
 qt_creator_file = resource_path("artemis.ui")
 Ui_MainWindow, _ = uic.loadUiType(qt_creator_file)
 
@@ -78,6 +85,9 @@ class Artemis(QMainWindow, Ui_MainWindow):
         self.action_rtl_sdr_com.triggered.connect(
             lambda: webbrowser.open(Constants.RTL_SDL_LINK)
         )
+        self.action_github.triggered.connect(
+            lambda: webbrowser.open(Constants.GITHUB_REPO)
+        )
         self.db = None
         self.current_signal_name = ''
         self.signal_names = []
diff --git a/src/artemis.ui b/src/artemis.ui
index 7297fdc..22684cf 100644
--- a/src/artemis.ui
+++ b/src/artemis.ui
@@ -9520,6 +9520,7 @@ QSlider::handle:horizontal {
     <addaction name="action_aresvalley_com"/>
     <addaction name="action_forum"/>
     <addaction name="action_rtl_sdr_com"/>
+    <addaction name="action_github"/>
    </widget>
    <addaction name="menuFile"/>
    <addaction name="menuUpdates"/>
@@ -9572,6 +9573,11 @@ QSlider::handle:horizontal {
     <string>RTL-SDR.com</string>
    </property>
   </action>
+  <action name="action_github">
+   <property name="text">
+    <string>GitHub</string>
+   </property>
+  </action>
  </widget>
  <customwidgets>
   <customwidget>
diff --git a/src/constants.py b/src/constants.py
index 30bc4b7..6e4f0ec 100644
--- a/src/constants.py
+++ b/src/constants.py
@@ -114,6 +114,7 @@ class Constants:
     ADD_SIGNAL_LINK         = "https://www.sigidwiki.com/index.php/Special:FormEdit/Signal/?preload=Signal_Identification_Wiki:Signal_form_preload_text"
     FORUM_LINK              = "https://aresvalley.com/community/"
     ARESVALLEY_LINK         = "https://aresvalley.com/"
+    GITHUB_REPO             = "https://github.com/AresValley/Artemis"
     RTL_SDL_LINK            = "https://www.rtl-sdr.com/"
     UPDATING_STR            = "Updating..."
     ACF_DOCS                = "https://aresvalley.com/documentation/"
diff --git a/unused_installation_scripts/README.md b/unused_installation_scripts/README.md
index 0c598f6..321e18f 100644
--- a/unused_installation_scripts/README.md
+++ b/unused_installation_scripts/README.md
@@ -60,19 +60,3 @@ This folder contains a third option to run Artemis 3 on your pc. The method of i
 > ### MacOS:
 >
 > 1. To Be Completed...
-
-## License
-This program (ARTEMIS 3, 2014-2019) is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
-
-This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License along with this program. If not, see: www.gnu.org/licenses
-
-## Thanks
-* **Marco Dalla Tiezza** - *Artemis I-II developer, DB parsing, Website*
-* [**Alessandro Ceccato**](https://github.com/alessandro90 "GitHub profile") - *Artemis III lead developer*
-* **Paolo Romani (IZ1MLL)** - *Lead β Tester, RF specialist*
-* **Carl Colena** - *Sigidwiki admin, β Tester, Signals expert*
-* **Marco Bortoli** - *macOS deployment, β Tester*
-* **Pierpaolo Pravatto** - *Wiki page, β Tester*
-* **Francesco Capostagno, Luca, Pietro** - *β Tester*