Add AUR packaging and automated publishing

[rursache]

Summary

• Adds a PKGBUILD and .SRCINFO for publishing linear-linux-bin to the AUR
• Adds a GitHub Actions workflow that automatically publishes to AUR every time you create a new release
• Supports both x86_64 and aarch64

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What you need to do (one-time setup)

Step 1: Create the AUR package

1. Go to https://aur.archlinux.org/register/ and create an account (if you don't have one)
2. After logging in, go to https://aur.archlinux.org/pkgsubmit.php
3. Type linear-linux-bin in the "Name" field
4. Click Submit
5. That's it. The package page now exists (it will be empty until the first publish)

Step 2: Generate an SSH key for AUR

You need an SSH key so the GitHub Action can push to AUR on your behalf.

1. Open a terminal and run:

   ssh-keygen -t ed25519 -C "aur" -f ~/.ssh/aur_key -N ""

2. This creates two files:
   • ~/.ssh/aur_key — this is the private key (keep it secret)
   • ~/.ssh/aur_key.pub — this is the public key

Step 3: Add the public key to your AUR account

1. Copy the public key:

   cat ~/.ssh/aur_key.pub

2. Go to https://aur.archlinux.org/account/ (make sure you're logged in)
3. Find the "SSH Public Key" field
4. Paste the entire output from step 1 into that field
5. Scroll down and click Update

Step 4: Add the private key to GitHub Secrets

1. Copy the private key:

   cat ~/.ssh/aur_key

2. Go to this repo's Settings → Secrets → Actions
3. Click "New repository secret"
4. Name: AUR_SSH_PRIVATE_KEY
5. Value: paste the entire private key (including the -----BEGIN and -----END lines)
6. Click "Add secret"

Step 5: You're done

From now on, every time you create a new release (either through the existing Release workflow or manually), the AUR package will be updated automatically. The workflow:

1. Detects the new release version
2. Downloads the AppImage artifacts
3. Computes SHA256 checksums
4. Updates the PKGBUILD with the new version + checksums
5. Pushes to AUR

You can also trigger it manually from Actions → "Publish to AUR" → "Run workflow" if you ever need to re-publish.

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What Arch users will do to install

# Using an AUR helper (e.g. yay, paru)
yay -S linear-linux-bin

# Or manually
git clone https://aur.archlinux.org/linear-linux-bin.git
cd linear-linux-bin
makepkg -si

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Files added

File	What it does
aur/PKGBUILD	The AUR build recipe — downloads the AppImage, extracts it, installs binary + desktop entry + icons
aur/.SRCINFO	AUR metadata (auto-regenerated by the CI on each publish)
.github/workflows/aur-publish.yml	GitHub Action that runs on every release and pushes to AUR

[selimaj-dev]

Thank you, i will check this out, but i'm currently hard focusing on another project