Installing OneComme
Let's start by installing OneComme
Windows
Download the latest version of OneComme from the official site's top page
Note
A warning may appear during download saying the file is "not commonly downloaded." See the link below to save it
If a warning appears and stops the download
Open the downloaded OneCommeSetup-x64-(version name).exe
The following warning will appear
Windows protected your PCMicrosoft Defender SmartScreen prevented an unrecognized app from starting.Running this app might put your PC at risk.More infoDon't run
Click "More info" to reach the following screen
Windows protected your PCMicrosoft Defender SmartScreen prevented an unrecognized app from starting.Running this app might put your PC at risk.App: Live Comment Viewer Setup 1.0.0.exeRunDon't run
Click the "Run anyway" button
Setup will start. Choose the installation location and click "Next"
Select Install OptionsWho should this be installed for?Choose whether to make this software available to all usersor only the current user.Install for all users of this computerInstall for the current user only (astie)Already installed for the current userReinstall / upgradeNext (N)Cancel
Change the installation location if needed
Choose Install LocationChoose the folder to install OneComme intoOneComme will be installed in the following folder. To install in adifferent folder, click "Browse" and select another folder.Click "Install" to begin the installation.Destination Folder< Back (B)InstallCancel
InstallInstalling OneComme. Please wait.Cancel
When the installation is finished, click "Finish" and OneComme will launch
OneComme SetupCompleting the OneComme Setup WizardOneComme has been installed on this computer.Click Finish to close the wizard.OneComme< Back (B)Finish (F)Cancel
MacOS
Download the latest version of OneComme from the official site's top page
Opening the downloaded pkg file launches the installer, and you can install OneComme.
Warning screen
If the allowed application source for downloaded apps is set to "App Store" or "App Store and identified developers," simply double-clicking the downloaded pkg file will show the following warning and won't let you install
"OneCommeSetup-x64-3.2.3.pkg" cannot be opened because the developercannot be verified."Security" preferences only allow installation of appsfrom the App Store and identified developersThis file was downloaded by Firefox today at 12:20from onecomme.com
Right-click and click "Open" to proceed with the installation
If the default application for pkg files is something other than the installer, select the installer from "Open With"
OpenOpen WithMove to TrashGet Info
If you're not signed in with an administrator account or settings are locked, you may be asked to authenticate
System Preferences is trying to change system settings.Enter an administrator name and password to allow this.UsernamePasswordCancel
The installer will launch
Reference: Open an app from an unidentified developer
Installation
Opening the pkg file in the installer shows the following screen
Click "Continue"
DestinationInstall TypeInstallWelcome to the OneComme InstallerYou will be guided through the steps needed to install this software.BackContinue
Select the installation destination
IntroductionInstall TypeInstallSummarySelect DestinationChoose how to install this softwareInstall for me onlyInstall on a specific diskInstalling this software requires 293.2 MB of disk spaceYou have chosen to install this software so that all users of thiscomputer can use itBackContinue
You can also install it only for the current user, or onto another disk. For example, if you want to install it only for a streaming-specific user, select "Install for me only"
Choose how to install this softwareInstall for all users of this computerInstall on a specific diskInstalling this software requires 293.2 MB of disk spaceYou have chosen to install this software in your home directoryOnly the currently logged-in user will be able to use thissoftware
Choose how to install this softwareTotalInstalling this software requires 293.2 MB of disk space
Click Install to start the installation
Click "Go Back" if you want to go back, or "Change Install Location…" if you want to choose the installation destination (also use this if the destination step was skipped earlier)
IntroductionDestinationInstallSummaryStandard Install on "Macintosh HD"This requires 2932 MB of space on your computerTo perform a standard install of this software in your home folder,click "Install". Only the user currently using this computerwill be able to use this softwareChange Install LocationBackInstall
Wait a moment
IntroductionDestinationInstall TypeSummaryOneComme InstallationWriting FilesBackContinue
The installation is complete
IntroductionDestinationInstall TypeInstallInstallation CompleteInstallation CompleteThe software was installedBack
Clicking "Close" will ask whether to move the installer to the trash
Choose whichever you prefer
IntroductionInstallInstallInstallMove the "OneComme" installer to the Trash?To keep this package here, click "Keep"pleaseKeepInstallation CompleteThe software was installedBackClose
If it's been added to Launchpad, the installation succeeded

It's convenient to add it to the Dock as well