Ubuntu 24.04, KDE
On the start OpenCode writes errors and you can see some lags in UI
[1859267:0807/162734.981814:ERROR:net/proxy_resolution/proxy_config_service_linux.cc:617] inotify_init failed: Too many open files (24)
[1859267:0807/162734.982417:ERROR:base/files/file_path_watcher_inotify.cc:338] inotify_init() failed: Too many open files (24)
[1859267:0807/162735.032669:ERROR:net/proxy_resolution/proxy_config_service_linux.cc:617] inotify_init failed: Too many open files (24)
[1859267:0807/162735.063739:ERROR:net/proxy_resolution/proxy_config_service_linux.cc:617] inotify_init failed: Too many open files (24)
Fixed by
sudo sysctl -w fs.inotify.max_user_instances=512
sudo sysctl -w fs.inotify.max_user_watches=524288
Or add persistently to the /etc/sysctl.conf