Languagetool
Languagetool is a great spell and grammar checker that I use since years. There is an open and a commercial version. For my use cases, usually the open version is enough. But I don't like to send all of my texts to a foreign server. Therefore, I install the service on my local machine and point the add-ons to that instance.
Install Service
Arch Linux
On Arch Languagetool is pretty simple to install and enable as a service:
pacman -S languagetool
sudo systemctl enable languagetool.service
sudo systemctl start languagetool.service
OpenSUSE
OpenSUSE doesn't offer a package. But it's possible to just install it as a user service:
Download the http-server Package and
extract to /opt/LanguageTool-*
Create /opt/LanguageTool-*/config.txt
with the following content:
cacheSize=1000
cacheTTLSeconds=600
Create ~/.config/systemd/user/languagetool.service
:
[Unit]
Description=LanguageTool Server
[Service]
Type=simple
WorkingDirectory=/opt/LanguageTool-5.8
ExecStart=/usr/bin/java -cp languagetool-server.jar org.languagetool.server.HTTPServer --port 8081 --allow-origin --config config.txt
Restart=always
[Install]
WantedBy=default.target
Then enable the user service:
systemctl --user enable languagetool.service
systemctl --user start languagetool.service
Test with:
curl 'http://localhost:8081/v2/check?language=en-US&text=my+text'
This should return some JSON-String.
Addons for Various Software
Thunderbird and Firefox
For Thunderbird and Firefox, there are official addons:
After the installation, open the addon settings. Scroll to the Experimental Settings and enable the option for the local server.
Neovim
For Neovim, the language server protocol can be used. For that install
ltex-ls. On Arch Linux, there is an AUR
package called ltex-ls-bin
that can be used for that. For the configuration
with Neovim, check the ltex section in the nvim-lspconfig
repo.