diff --git a/install/includes/gettext/locale/sl/LC_MESSAGES/installer.po b/install/includes/gettext/locale/sl/LC_MESSAGES/installer.po
new file mode 100644
index 000000000..da6d0713b
--- /dev/null
+++ b/install/includes/gettext/locale/sl/LC_MESSAGES/installer.po
@@ -0,0 +1,734 @@
+# WAVELOG PO FILE
+# Copyright (c) 2025 Wavelog by DF2ET, DJ7NT, HB9HIL and LA8AJA.
+# This file is distributed under the MIT licence.
+#
+# Fabian Berg <fabian.berg@hb9hil.org>, 2025.
+msgid ""
+msgstr ""
+"Report-Msgid-Bugs-To: translations@wavelog.org\n"
+"POT-Creation-Date: 2025-01-23 10:57+0000\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: Automatically generated\n"
+"Language-Team: none\n"
+"Language: sl\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: install/includes/install_config/install_lib.php:123
+msgid "not detected"
+msgstr ""
+
+#: install/includes/interface_assets/footer.php:57
+msgid "Albanian"
+msgstr ""
+
+#: install/includes/interface_assets/footer.php:58
+msgid "Armenian"
+msgstr ""
+
+#: install/includes/interface_assets/footer.php:59
+msgid "Bosnian"
+msgstr ""
+
+#: install/includes/interface_assets/footer.php:60
+msgid "Bulgarian"
+msgstr ""
+
+#: install/includes/interface_assets/footer.php:61
+msgid "Chinese (Simplified)"
+msgstr ""
+
+#: install/includes/interface_assets/footer.php:62
+msgid "Croatian"
+msgstr ""
+
+#: install/includes/interface_assets/footer.php:63
+msgid "Czech"
+msgstr ""
+
+#: install/includes/interface_assets/footer.php:64
+msgid "Dutch"
+msgstr ""
+
+#: install/includes/interface_assets/footer.php:65
+msgid "English"
+msgstr ""
+
+#: install/includes/interface_assets/footer.php:66
+msgid "Estonian"
+msgstr ""
+
+#: install/includes/interface_assets/footer.php:67
+msgid "Finnish"
+msgstr ""
+
+#: install/includes/interface_assets/footer.php:68
+msgid "French"
+msgstr ""
+
+#: install/includes/interface_assets/footer.php:69
+msgid "German"
+msgstr ""
+
+#: install/includes/interface_assets/footer.php:70
+msgid "Greek"
+msgstr ""
+
+#: install/includes/interface_assets/footer.php:71
+msgid "Italian"
+msgstr ""
+
+#: install/includes/interface_assets/footer.php:72
+msgid "Latvian"
+msgstr ""
+
+#: install/includes/interface_assets/footer.php:73
+msgid "Lithuanian"
+msgstr ""
+
+#: install/includes/interface_assets/footer.php:74
+msgid "Montenegrin"
+msgstr ""
+
+#: install/includes/interface_assets/footer.php:75
+msgid "Polish"
+msgstr ""
+
+#: install/includes/interface_assets/footer.php:76
+msgid "Portuguese"
+msgstr ""
+
+#: install/includes/interface_assets/footer.php:77
+msgid "Russian"
+msgstr ""
+
+#: install/includes/interface_assets/footer.php:78
+msgid "Serbian"
+msgstr ""
+
+#: install/includes/interface_assets/footer.php:79
+msgid "Slovenian"
+msgstr ""
+
+#: install/includes/interface_assets/footer.php:80
+msgid "Spanish"
+msgstr ""
+
+#: install/includes/interface_assets/footer.php:81
+msgid "Swedish"
+msgstr ""
+
+#: install/includes/interface_assets/footer.php:82
+msgid "Turkish"
+msgstr ""
+
+#: install/includes/interface_assets/header.php:94
+msgid "Install | Wavelog"
+msgstr ""
+
+#: install/index.php:35
+msgid "1. Welcome"
+msgstr ""
+
+#: install/index.php:38
+msgid "2. Pre Checks"
+msgstr ""
+
+#: install/index.php:41
+msgid "3. Configuration"
+msgstr ""
+
+#: install/index.php:44
+msgid "4. Database"
+msgstr ""
+
+#: install/index.php:47
+msgid "5. First User"
+msgstr ""
+
+#: install/index.php:50
+msgid "6. Finish"
+msgstr ""
+
+#: install/index.php:67
+msgid "Welcome to the Wavelog Installer"
+msgstr ""
+
+#: install/index.php:68
+msgid ""
+"This installer will guide you through the necessary steps for the "
+"installation of Wavelog. <br>Wavelog is a powerful web-based amateur radio "
+"logging software. Follow the steps in each tab to configure and install "
+"Wavelog on your server."
+msgstr ""
+
+#: install/index.php:69
+msgid "Discussions"
+msgstr ""
+
+#: install/index.php:69
+#, php-format
+msgid ""
+"If you encounter any issues or have questions, refer to the documentation "
+"(%s) or community forum (%s) on Github for assistance."
+msgstr ""
+
+#: install/index.php:69
+msgid "Wiki"
+msgstr ""
+
+#: install/index.php:70
+msgid "Thank you for installing Wavelog!"
+msgstr ""
+
+#: install/index.php:71 install/index.php:74 install/index.php:1032
+msgid "Language"
+msgstr ""
+
+#: install/index.php:84
+msgid "Select a language"
+msgstr ""
+
+#: install/index.php:96 install/index.php:417
+msgid "Close"
+msgstr ""
+
+#: install/index.php:106
+msgid "PHP Modules"
+msgstr ""
+
+#: install/index.php:113
+msgid "Version"
+msgstr ""
+
+#: install/index.php:114
+#, php-format
+msgctxt "PHP Version"
+msgid "min. %s (recommended %s+)"
+msgstr ""
+
+#: install/index.php:141
+msgid "Installed"
+msgstr ""
+
+#: install/index.php:141
+msgid "Not Installed"
+msgstr ""
+
+#: install/index.php:149
+msgid "PHP Settings"
+msgstr ""
+
+#: install/index.php:239
+msgid "Folder Write Permissions"
+msgstr ""
+
+#: install/index.php:245 install/index.php:256 install/index.php:267
+#: install/index.php:278 install/index.php:289
+msgid "Success"
+msgstr ""
+
+#: install/index.php:248 install/index.php:259 install/index.php:270
+#: install/index.php:281 install/index.php:292
+msgid "Failed"
+msgstr ""
+
+#: install/index.php:299
+msgid "Web Server"
+msgstr ""
+
+#: install/index.php:302
+msgid "Version:"
+msgstr ""
+
+#: install/index.php:309
+msgid "Important note for nginx users!"
+msgstr ""
+
+#: install/index.php:310
+msgid ""
+"Since you are using nginx as web server please make sure that you have made "
+"the changes described in the Wiki before continuing."
+msgstr ""
+
+#: install/index.php:319
+msgid "Some Checks have failed!"
+msgstr ""
+
+#: install/index.php:320
+msgid "Check your PHP settings and install missing modules if necessary."
+msgstr ""
+
+#: install/index.php:321
+msgid ""
+"After that, you have to restart your webserver and start the installer again."
+msgstr ""
+
+#: install/index.php:322
+#, php-format
+msgid ""
+"In case of failed 'Folder Write Permissions' check out our Wiki <a href='%s' "
+"target='_blank'>here</a>."
+msgstr ""
+
+#: install/index.php:328
+msgid "You have some warnings!"
+msgstr ""
+
+#: install/index.php:329
+msgid ""
+"Some of the settings are not optimal. You can proceed with the installer but "
+"be aware that you could run into problems while using Wavelog."
+msgstr ""
+
+#: install/index.php:336
+msgid "All Checks are OK. You can continue."
+msgstr ""
+
+#: install/index.php:350
+msgid ""
+"Configure some basic parameters for your wavelog instance. You can change "
+"them later in 'application/config/config.php'"
+msgstr ""
+
+#: install/index.php:352
+msgid ""
+"This is the URL where you can access this Wavelog instance after the "
+"installer has run. If this does not display what you expect, you may need to "
+"check your web server configuration. This is the base_url in your config."
+"php, which can be edited after the installation."
+msgstr ""
+
+#: install/index.php:352
+msgid "Your final Wavelog URL"
+msgstr ""
+
+#: install/index.php:358
+msgid "Optional: Global Callbook Lookup"
+msgstr ""
+
+#: install/index.php:358
+msgid ""
+"This configuration is optional. The callsign lookup will be available for "
+"all users of this installation. You can choose between QRZ.com and HamQTH. "
+"While HamQTH also works without username and password, you will need "
+"credentials for QRZ.com. To also get the Call Locator in QRZ.com you'll need "
+"an XML subscription. HamQTH does not always provide the locator information."
+msgstr ""
+
+#: install/index.php:368 install/index.php:449 install/index.php:901
+msgid "Username"
+msgstr ""
+
+#: install/index.php:371 install/index.php:453 install/index.php:911
+msgid "Password"
+msgstr ""
+
+#: install/index.php:376
+msgid "Callbook Username"
+msgstr ""
+
+#: install/index.php:379
+msgid "Callbook Password"
+msgstr ""
+
+#: install/index.php:381
+#, php-format
+msgid "Password can't contain %s or be empty"
+msgstr ""
+
+#: install/index.php:386
+msgid "Good to know:"
+msgstr ""
+
+#: install/index.php:387
+msgid ""
+"Use your callsign as your username for QRZ.com. The XML API does not support "
+"email addresses."
+msgstr ""
+
+#: install/index.php:390 install/index.php:395
+msgid "Advanced Settings"
+msgstr ""
+
+#: install/index.php:398
+msgid "These settings should only be set if you know what you're doing."
+msgstr ""
+
+#: install/index.php:401
+msgid "Error Logs"
+msgstr ""
+
+#: install/index.php:402
+msgid ""
+"Optional: Enable Error Logging by setting the log threshold bigger then 0. "
+"Only enable this if you really need it."
+msgstr ""
+
+#: install/index.php:407
+msgid "0 - No logs"
+msgstr ""
+
+#: install/index.php:408
+msgid "1 - Error messages"
+msgstr ""
+
+#: install/index.php:409
+msgid "2 - Debug messages"
+msgstr ""
+
+#: install/index.php:410
+msgid "3 - Info messages"
+msgstr ""
+
+#: install/index.php:411
+msgid "4 - All messages"
+msgstr ""
+
+#: install/index.php:433
+msgid ""
+"To properly install Wavelog you already should have setup a mariadb/mysql "
+"database. Provide the parameters here."
+msgstr ""
+
+#: install/index.php:437
+msgid "Hostname or IP"
+msgstr ""
+
+#: install/index.php:437
+msgid ""
+"Usually 'localhost'.<br>Optional with '[host]:[port]'. Default port: 3306."
+"<br>In a docker compose install type 'wavelog-db'."
+msgstr ""
+
+#: install/index.php:443
+msgid "Database Name"
+msgstr ""
+
+#: install/index.php:443
+msgid "Name of the Database"
+msgstr ""
+
+#: install/index.php:449
+msgid "Username of the Database User which has full access to the database."
+msgstr ""
+
+#: install/index.php:453
+msgid "Password of the Database User"
+msgstr ""
+
+#: install/index.php:457
+msgid "Connection Test"
+msgstr ""
+
+#: install/index.php:468
+msgid ""
+"Now you can create your first user in Wavelog. Fill out all fields and click "
+"continue. Make sure you use a safe password."
+msgstr ""
+
+#: install/index.php:469
+msgid "All fields are required!"
+msgstr ""
+
+#: install/index.php:477
+msgid "First Name"
+msgstr ""
+
+#: install/index.php:481
+msgid "DXCC"
+msgstr ""
+
+#: install/index.php:483
+msgid "Please select one"
+msgstr ""
+
+#: install/index.php:484 install/index.php:490 install/index.php:514
+#: install/index.php:526 install/index.php:529 install/index.php:534
+#: install/index.php:535 install/index.php:544 install/index.php:548
+#: install/index.php:563 install/index.php:576 install/index.php:577
+#: install/index.php:581 install/index.php:602 install/index.php:609
+#: install/index.php:611 install/index.php:612 install/index.php:614
+#: install/index.php:618 install/index.php:619 install/index.php:620
+#: install/index.php:624 install/index.php:625 install/index.php:644
+#: install/index.php:652 install/index.php:658 install/index.php:665
+#: install/index.php:666 install/index.php:672 install/index.php:674
+#: install/index.php:676 install/index.php:694 install/index.php:699
+#: install/index.php:700 install/index.php:714 install/index.php:729
+#: install/index.php:730 install/index.php:734 install/index.php:745
+#: install/index.php:746 install/index.php:751 install/index.php:755
+#: install/index.php:757 install/index.php:758 install/index.php:765
+#: install/index.php:780 install/index.php:782 install/index.php:799
+#: install/index.php:802 install/index.php:807 install/index.php:810
+#: install/index.php:813 install/index.php:823 install/index.php:829
+#: install/index.php:833 install/index.php:839 install/index.php:842
+#: install/index.php:845 install/index.php:850 install/index.php:876
+#: install/index.php:882 install/index.php:884 install/index.php:1690
+msgid "Deleted DXCC"
+msgstr ""
+
+#: install/index.php:891
+msgid "Last Name"
+msgstr ""
+
+#: install/index.php:895
+msgid "Callsign"
+msgstr ""
+
+#: install/index.php:905
+msgid "Gridsquare/Locator"
+msgstr ""
+
+#: install/index.php:915
+msgid "City"
+msgstr ""
+
+#: install/index.php:921
+msgid "Confirm Password"
+msgstr ""
+
+#: install/index.php:925
+msgid "Timezone"
+msgstr ""
+
+#: install/index.php:1028
+msgid "E-Mail Address"
+msgstr ""
+
+#: install/index.php:1050
+msgid "Checklist"
+msgstr ""
+
+#: install/index.php:1055
+msgid "Pre-Checks"
+msgstr ""
+
+#: install/index.php:1064
+msgid "Configuration"
+msgstr ""
+
+#: install/index.php:1073
+msgid "Database"
+msgstr ""
+
+#: install/index.php:1082
+msgid "First User"
+msgstr ""
+
+#: install/index.php:1092
+msgid "Nearly done!"
+msgstr ""
+
+#: install/index.php:1094
+msgid "You prepared all neccessary steps."
+msgstr ""
+
+#: install/index.php:1095
+msgid "We now can install Wavelog. This process can take a few minutes."
+msgstr ""
+
+#: install/index.php:1101
+msgid "Reset"
+msgstr ""
+
+#: install/index.php:1106
+msgid "Installer Reset"
+msgstr ""
+
+#: install/index.php:1109
+msgid "Do you really want to reset all data and start from scratch?"
+msgstr ""
+
+#: install/index.php:1112
+msgid "Yes"
+msgstr ""
+
+#: install/index.php:1113
+msgid "No"
+msgstr ""
+
+#: install/index.php:1123
+msgid "Back"
+msgstr ""
+
+#: install/index.php:1124
+msgid "Continue"
+msgstr ""
+
+#: install/index.php:1202
+msgid ""
+"You can't continue. Solve the red marked issues, restart the webserver and "
+"reload this page."
+msgstr ""
+
+#: install/index.php:1329
+msgid "Password can't contain ' / \\ < >"
+msgstr ""
+
+#: install/index.php:1333
+msgid ""
+"The callsign should not contain any pre- or suffixes as it is used as "
+"personal operator callsign."
+msgstr ""
+
+#: install/index.php:1345
+msgid ""
+"The callsign can not contain any special characters. It's your personal "
+"callsign without any pre- or suffixes."
+msgstr ""
+
+#: install/index.php:1478
+msgid "Error: At least Hostname/IP, Database Name and Username are required."
+msgstr ""
+
+#: install/index.php:1488
+msgid "Connecting..."
+msgstr ""
+
+#: install/index.php:1512
+msgid "Connection was successful and your database should be compatible."
+msgstr ""
+
+#: install/index.php:1516
+msgid ""
+"Connection was successful but your database seems too old for Wavelog. You "
+"can try to continue but you could run into issues."
+msgstr ""
+
+#: install/index.php:1516
+#, php-format
+msgid "The min. version for MySQL is %s, for MariaDB it's %s."
+msgstr ""
+
+#: install/index.php:1636
+msgid "Search"
+msgstr ""
+
+#: install/index.php:1673
+msgid "At least one field is empty."
+msgstr ""
+
+#: install/index.php:1692
+msgid ""
+"Stop here for a Moment. Your chosen DXCC is outdated and not valid anymore. "
+"Check which DXCC for this particular location is the correct one. If you are "
+"sure, ignore this warning."
+msgstr ""
+
+#: install/index.php:1716
+msgid ""
+"The locator seems to be not in the correct format. Should look like AA11AA "
+"(6-char grid locator)."
+msgstr ""
+
+#: install/index.php:1730
+msgid ""
+"The e-mail adress does not look correct. Make sure it's a valid e-mail "
+"address"
+msgstr ""
+
+#: install/index.php:1757
+msgid "Password should be at least 8 characters long"
+msgstr ""
+
+#: install/index.php:1766
+msgid "Passwords do not match"
+msgstr ""
+
+#: install/index.php:1822
+msgid "Install Now"
+msgstr ""
+
+#: install/index.php:1826
+msgid "Install not possible. Checklist incomplete."
+msgstr ""
+
+#: install/index.php:1938
+msgid "PHP Module missing"
+msgstr ""
+
+#: install/index.php:1940
+msgid "The following PHP modules are missing:"
+msgstr ""
+
+#: install/index.php:1941
+msgid "Without this module the Wavelog Installer does not work!"
+msgstr ""
+
+#: install/index.php:1942
+msgid "Please install the required modules and restart the webserver."
+msgstr ""
+
+#: install/run.php:10
+msgid "Installation"
+msgstr ""
+
+#: install/run.php:12
+msgid "Please wait..."
+msgstr ""
+
+#: install/run.php:15
+msgid "Copy config.php to application/config/"
+msgstr ""
+
+#: install/run.php:18
+msgid "Copy database.php to application/config/"
+msgstr ""
+
+#: install/run.php:21
+msgid "Creating database tables"
+msgstr ""
+
+#: install/run.php:24
+msgid "Running database migrations"
+msgstr ""
+
+#: install/run.php:27
+msgid "Updating DXCC data"
+msgstr ""
+
+#: install/run.php:35
+msgid "Lock the installer"
+msgstr ""
+
+#: install/run.php:39
+#, php-format
+msgid "All install steps went through. Redirect to user login in %s seconds..."
+msgstr ""
+
+#: install/run.php:42
+msgid "Done. Go to the user login ->"
+msgstr ""
+
+#: install/run.php:46 install/run.php:125
+msgid "Show detailled debug log"
+msgstr ""
+
+#: install/run.php:127
+msgid "Hide detailled debug log"
+msgstr ""
+
+#: install/run.php:182
+msgid "Could not create application/config/config.php"
+msgstr ""
+
+#: install/run.php:217
+msgid "Could not create application/config/database.php"
+msgstr ""
+
+#: install/run.php:251
+msgid "Could not create database tables"
+msgstr ""
+
+#: install/run.php:281
+msgid "Could not run database migrations"
+msgstr ""
+
+#: install/run.php:309
+msgid "Could not update DXCC data"
+msgstr ""
+
+#: install/run.php:341
+msgid "Could not create install/.lock file"
+msgstr ""