This is a selection of settings and preferences for my Fedora Silverblue installation.

Reference:

• https://rpmfusion.org/Howto/OSTree
• https://docs.fedoraproject.org/en-US/fedora-silverblue/troubleshooting/

To show difference after upgrades:

rpm-ostree db diff -c

Increasing nofile limits may be needed for certain applications and games to work.

See https://access.redhat.com/solutions/1257953 for more details.

NOTE: Reboot the system to apply increased limits.

If you are using encryption on a NVMe/SSD, you may want to improve performance by disabling the workqueue.

See https://wiki.archlinux.org/title/Dm-crypt/Specialties#Disable_workqueue_for_increased_solid_state_drive_(SSD)_performance for details.

If you are using Btrfs, you may want to use https://github.com/kdave/btrfsmaintenance:

rpm-ostree install btrfsmaintenance
nano /etc/sysconfig/btrfsmaintenance

Enable the timers:

sudo systemctl enable btrfs-balance.timer btrfs-defrag.timer btrfs-scrub.timer btrfs-trim.timer --now

It is discourage to install (large) software on the ostree. Try to use Flatpaks and toolboxes (toolbox create and toolbox enter) as much as possible.

You can pull the latest toolbox, using:

podman pull fedora-toolbox:40

To update a toolbox:

toolbox enter
sudo dnf update && sudo dnf upgrade

You can create multiple toolboxes, and even manage them using Podman Desktop.

To replace the provided default Firefox package, with the Firefox Flathub version for example:

rpm-ostree override remove firefox firefox-langpacks

NOTE: You can also hide the desktop entry itself.

Depending on your hardware, you may need to enable/disable different flags. See https://chromium.googlesource.com/chromium/src/+/refs/heads/main/docs/gpu/vaapi.md#vaapi-on-linux for details.

Enable and use rootless containers:

• https://github.com/containers/podman/blob/main/docs/tutorials/rootless_tutorial.md
• https://wiki.archlinux.org/title/Podman#Rootless_Podman

To learn more about Podman Quadlet, the following resources may be useful:

• https://docs.podman.io/en/latest/markdown/podman-systemd.unit.5.html
• https://www.redhat.com/sysadmin/quadlet-podman
• https://mo8it.com/blog/quadlet/

See the following guides:

• flathub/com.visualstudio.code#426 (comment)
• https://github.com/jorchube/devcontainer-definitions
• VSCodium/vscodium#1487

You may use Flatseal, and set the following overwrites:

• Add to Other files: xdg-run/podman:ro
• Add to Variables: FLATPAK_ENABLE_SDK_EXT=podman,php83

Current extensions:

$ flatpak run com.visualstudio.code  --list-extensions | xargs -L 1 echo vsc --install-extension
aaron-bond.better-comments
amiralizadeh9480.laravel-extra-intellisense
bmewburn.vscode-intelephense-client
bradlc.vscode-tailwindcss
christian-kohler.npm-intellisense
christian-kohler.path-intellisense
davidanson.vscode-markdownlint
dbaeumer.vscode-eslint
devsense.composer-php-vscode
eamodio.gitlens
editorconfig.editorconfig
eriklynd.json-tools
esbenp.prettier-vscode
github.copilot
github.copilot-chat
github.github-vscode-theme
github.vscode-github-actions
jock.svg
ms-azuretools.vscode-docker
ms-vscode.atom-keybindings
onecentlin.laravel-blade
pkief.material-icon-theme
quicktype.quicktype
redhat.vscode-yaml
shd101wyy.markdown-preview-enhanced
sleistner.vscode-fileutils
streetsidesoftware.code-spell-checker
stylelint.vscode-stylelint
visualstudioexptteam.intellicode-api-usage-examples
visualstudioexptteam.vscodeintellicode
wmaurer.change-case

See https://starship.rs/guide/, append paths:

rpm-ostree install fish ibm-plex-mono-fonts ibm-plex-sans-fonts ibm-plex-serif-fonts
fish_add_path  ~/.local/bin ~/.config/yarn/global/node_modules/.bin

See https://itsfoss.com/flatpak-app-apply-theme/ instructions for Flatpak theming.

To install Gnome Tweak:

rpm-ostree install gnome-tweak-tool