Apply more compression to sd compress

Author: blackcoffeexbt

.github/workflows/build-image.yml

@@ -61,7 +61,7 @@ jobs:
       - name: Build SD image
         timeout-minutes: 120
         run: |
-          nix build .#sdImage -L --out-link result-sdimage
+          nix build .#sdImageUncompressed -L --out-link result-sdimage
           ls -lah result-sdimage/sd-image
 
       - name: Build and push system toplevel for OTA updates
@@ -74,7 +74,7 @@ jobs:
       - name: Collect artefacts
         run: |
           mkdir -p dist
-          cp -v result-sdimage/sd-image/*.img.zst dist/
+          zstd -T0 --ultra -22 result-sdimage/sd-image/*.img -o dist/lnbitsbox-${GITHUB_REF_NAME#v}.img.zst
           sha256sum dist/*.img.zst | tee dist/SHA256SUMS.txt
 
       - name: Create update manifest

README.md

@@ -49,7 +49,7 @@ All directories are owned by their respective system users and persist across re
 ### Step 1: Download the image
 
 1. Go to **[Releases](../../releases)**
-2. Download the latest `nixos-sd-image-*-aarch64-linux.img.zst` file
+2. Download the latest `lnbitsbox-<version>.img.zst` file
 3. (Optional) Download `SHA256SUMS.txt` to verify integrity
 
 ### Step 2: Flash to SD card
@@ -81,8 +81,8 @@ lsblk
 sudo umount /dev/sdX*
 
 # Decompress first, then write
-zstd -d nixos-sd-image-*.img.zst
-sudo dd if=nixos-sd-image-*.img of=/dev/sdX bs=4M status=progress conv=fsync
+zstd -d lnbitsbox-*.img.zst
+sudo dd if=lnbitsbox-*.img of=/dev/sdX bs=4M status=progress conv=fsync
 ```
 
 **macOS:**
@@ -94,7 +94,7 @@ diskutil list
 diskutil unmountDisk /dev/diskX
 
 # Write the image (use rdiskX for faster writing)
-zstd -dc nixos-sd-image-*.img.zst | sudo dd of=/dev/rdiskX bs=4m
+zstd -dc lnbitsbox-*.img.zst | sudo dd of=/dev/rdiskX bs=4m
 
 # Eject when complete
 diskutil eject /dev/diskX

docs/development.md

@@ -11,7 +11,7 @@ You can build two variants of the SD image:
 
 | Build Type | Command | Output | Use Case |
 |------------|---------|--------|----------|
-| **Compressed** (default) | `nix build .#sdImage -L` | `*.img.zst` | For distribution, GitHub releases (smaller file size) |
+| **Compressed** | `nix build .#sdImage -L` | `*.img.zst` | For distribution, GitHub releases (smaller file size) |
 | **Uncompressed** | `nix build .#sdImageUncompressed -L` | `*.img` | For local testing (faster build, faster flashing) |
 | **Quick Test** | `./build-test.sh` | `*.img` (copied to repo root) | Fastest way to build and prepare for flashing |
 
@@ -133,7 +133,7 @@ Build the SD image:
 ./build-test.sh
 
 # OR: Manual builds
-# Compressed image (default, smaller for distribution)
+# Compressed image (smaller for distribution)
 nix build .#sdImage -L
 
 # Uncompressed image (faster for local testing, skips compression)
@@ -160,8 +160,8 @@ Copy the image to a distribution directory:
 ```bash
 mkdir -p dist
 
-# For compressed images (releases)
-cp -v result/sd-image/*.img.zst dist/
+# For release images, build uncompressed first and recompress aggressively
+zstd -T0 --ultra -22 result/sd-image/*.img -o dist/lnbitsbox-$(git describe --tags --always | sed "s/^v//").img.zst
 sha256sum dist/*.img.zst > dist/SHA256SUMS.txt
 
 # For uncompressed images (if using build-test.sh, already in repo root)

nixos/configuration.nix

@@ -5,6 +5,11 @@
 
   sdImage.imageName = "lnbitsbox-${version}.img";
 
+  documentation.enable = false;
+  documentation.doc.enable = false;
+  documentation.info.enable = false;
+  documentation.man.enable = false;
+
   # Write version to filesystem for the admin app to read
   environment.etc."lnbitsbox-version".text = version;