add i686 system

This still excludes static builds due to a bug in oqs-sys.
Once oqs-sys is bumped to use liboqs 0.8, full 32 bit x86 support is viable.

.ci/gen-workflow-files.nu

@@ -9,8 +9,7 @@ let systems_map = {
   # aarch64-darwin
   # aarch64-linux
   
-  # TODO this one can be enabled once a oqs-sys with liboqs 0.8 is released, this can be enabled
-  # i686-linux: ubuntu-latest,
+  i686-linux: ubuntu-latest,
   x86_64-darwin: macos-latest,
   x86_64-linux: ubuntu-latest
 }
@@ -72,6 +71,16 @@ for system in ($targets | columns) {
   let derivations = ($targets | get $system)
   for derivation in $derivations {
 
+    if ($system == "i686-linux") and ($derivation | str contains "static") {
+      log info $"skipping ($system).($derivation), due to liboqs 0.8 not present in oqs-sys"
+      continue
+    }
+
+    if ($system == "i686-linux") and ($derivation | str contains "release-package") {
+      log info $"skipping ($system).($derivation), due to liboqs 0.8 not present in oqs-sys"
+      continue
+    }
+
     # skip the default derivation, its an alias of the rosenpass derivation
     if ($derivation == "default") {
       continue

.github/workflows/nix.yaml

@@ -7,6 +7,54 @@ on:
     branches:
       - main
 jobs:
+  i686-linux---rosenpass:
+    name: Build i686-linux.rosenpass
+    runs-on:
+      - ubuntu-latest
+    needs: []
+    steps:
+      - uses: actions/checkout@v3
+      - uses: cachix/install-nix-action@v21
+        with:
+          nix_path: nixpkgs=channel:nixos-unstable
+      - uses: cachix/cachix-action@v12
+        with:
+          name: rosenpass
+          authToken: ${{ secrets.CACHIX_AUTH_TOKEN }}
+      - name: Build
+        run: nix build .#packages.i686-linux.rosenpass --print-build-logs
+  i686-linux---rosenpass-oci-image:
+    name: Build i686-linux.rosenpass-oci-image
+    runs-on:
+      - ubuntu-latest
+    needs:
+      - i686-linux---rosenpass
+    steps:
+      - uses: actions/checkout@v3
+      - uses: cachix/install-nix-action@v21
+        with:
+          nix_path: nixpkgs=channel:nixos-unstable
+      - uses: cachix/cachix-action@v12
+        with:
+          name: rosenpass
+          authToken: ${{ secrets.CACHIX_AUTH_TOKEN }}
+      - name: Build
+        run: nix build .#packages.i686-linux.rosenpass-oci-image --print-build-logs
+  i686-linux---check:
+    name: Run Nix checks on i686-linux
+    runs-on:
+      - ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: cachix/install-nix-action@v21
+        with:
+          nix_path: nixpkgs=channel:nixos-unstable
+      - uses: cachix/cachix-action@v12
+        with:
+          name: rosenpass
+          authToken: ${{ secrets.CACHIX_AUTH_TOKEN }}
+      - name: Check
+        run: nix flake check . --print-build-logs
   x86_64-darwin---release-package:
     name: Build x86_64-darwin.release-package
     runs-on:

.github/workflows/release.yaml

@@ -6,6 +6,27 @@ on:
     tags:
       - v*
 jobs:
+  i686-linux---release:
+    name: Build release artifacts for i686-linux
+    runs-on:
+      - ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: cachix/install-nix-action@v21
+        with:
+          nix_path: nixpkgs=channel:nixos-unstable
+      - uses: cachix/cachix-action@v12
+        with:
+          name: rosenpass
+          authToken: ${{ secrets.CACHIX_AUTH_TOKEN }}
+      - name: Build release
+        run: nix build .#release-package --print-build-logs
+      - name: Release
+        uses: softprops/action-gh-release@v1
+        with:
+          draft: ${{ contains(github.ref_name, 'rc') }}
+          prerelease: ${{ contains(github.ref_name, 'alpha') || contains(github.ref_name, 'beta') }}
+          files: result/*
   x86_64-darwin---release:
     name: Build release artifacts for x86_64-darwin
     runs-on: