chore: Switch license to FPAL v1.0 and replace incompatible dependencies

Replaced third-party libraries that weren’t compatible with FPAL and updated project license to Fabricators Public Access License v1.0.

Author: mirkobrombin

.gitignore

@@ -7,4 +7,4 @@ podman-launcher
 go.work
 go.work.sum
 /tools/host-spawn
-/tools/busybox
+/tools/nsenter

LICENSE

@@ -1,18 +1,18 @@
-.PHONY: all clean download cpak
-all: clean download cpak
+.PHONY: all clean download nsenter cpak
+all: clean download nsenter cpak
 
 clean:
 	@rm -f cpak
 	@rm -f pkg/tools/rootlesskit.tar.gz
-	@rm -f pkg/tools/busybox
+	@rm -f pkg/tools/nsenter
 
 download:
 	curl -L \
-		https://github.com/rootless-containers/rootlesskit/releases/download/v2.0.0-alpha.0/rootlesskit-x86_64.tar.gz \
+		https://github.com/rootless-containers/rootlesskit/releases/download/v2.3.5/rootlesskit-x86_64.tar.gz \
 		-o pkg/tools/rootlesskit.tar.gz
-	curl -L \
-		https://busybox.net/downloads/binaries/1.35.0-x86_64-linux-musl/busybox \
-		-o pkg/tools/busybox
+
+nsenter:
+	musl-gcc -static -O2 -s native/nsenter/nsenter.c -o pkg/tools/nsenter
 
 cpak:
 	go build -trimpath -ldflags="-s -w" -o cpak .

Makefile

@@ -0,0 +1,172 @@
+This product includes software developed by third parties.
+
+---
+
+## Libraries
+
+**github.com/distrobox/hrun/pkg**
+License: MIT
+[https://github.com/distrobox/hrun/blob/v0.0.3/LICENSE](https://github.com/distrobox/hrun/blob/v0.0.3/LICENSE)
+
+**github.com/mirkobrombin/dabadee/pkg**
+License: Apache-2.0
+[https://github.com/mirkobrombin/dabadee/blob/v1.0.0/LICENSE](https://github.com/mirkobrombin/dabadee/blob/v1.0.0/LICENSE)
+
+**github.com/containerd/stargz-snapshotter/estargz**
+License: Apache-2.0
+[https://github.com/containerd/stargz-snapshotter/blob/estargz/v0.14.3/estargz/LICENSE](https://github.com/containerd/stargz-snapshotter/blob/estargz/v0.14.3/estargz/LICENSE)
+
+**github.com/creack/pty**
+License: MIT
+[https://github.com/creack/pty/blob/v1.1.21/LICENSE](https://github.com/creack/pty/blob/v1.1.21/LICENSE)
+
+**github.com/docker/cli/cli/config**
+License: Apache-2.0
+[https://github.com/docker/cli/blob/v24.0.0/LICENSE](https://github.com/docker/cli/blob/v24.0.0/LICENSE)
+
+**github.com/docker/distribution/registry/client/auth/challenge**
+License: Apache-2.0
+[https://github.com/docker/distribution/blob/v2.8.2/LICENSE](https://github.com/docker/distribution/blob/v2.8.2/LICENSE)
+
+**github.com/docker/docker-credential-helpers**
+License: MIT
+[https://github.com/docker/docker-credential-helpers/blob/v0.7.0/LICENSE](https://github.com/docker/docker-credential-helpers/blob/v0.7.0/LICENSE)
+
+**github.com/docker/docker/pkg/homedir**
+License: Apache-2.0
+[https://github.com/docker/docker/blob/v25.0.6/LICENSE](https://github.com/docker/docker/blob/v25.0.6/LICENSE)
+
+**github.com/google/go-containerregistry**
+License: Apache-2.0
+[https://github.com/google/go-containerregistry/blob/v0.16.1/LICENSE](https://github.com/google/go-containerregistry/blob/v0.16.1/LICENSE)
+
+**github.com/google/uuid**
+License: BSD-3-Clause
+[https://github.com/google/uuid/blob/v1.3.1/LICENSE](https://github.com/google/uuid/blob/v1.3.1/LICENSE)
+
+**github.com/jinzhu/inflection**
+License: MIT
+[https://github.com/jinzhu/inflection/blob/v1.0.0/LICENSE](https://github.com/jinzhu/inflection/blob/v1.0.0/LICENSE)
+
+**github.com/jinzhu/now**
+License: MIT
+[https://github.com/jinzhu/now/blob/v1.1.5/License](https://github.com/jinzhu/now/blob/v1.1.5/License)
+
+**github.com/klauspost/compress**
+License: Apache-2.0
+[https://github.com/klauspost/compress/blob/v1.16.5/LICENSE](https://github.com/klauspost/compress/blob/v1.16.5/LICENSE)
+
+**github.com/klauspost/compress/internal/snapref**
+License: BSD-3-Clause
+[https://github.com/klauspost/compress/blob/v1.16.5/internal/snapref/LICENSE](https://github.com/klauspost/compress/blob/v1.16.5/internal/snapref/LICENSE)
+
+**github.com/klauspost/compress/zstd/internal/xxhash**
+License: MIT
+[https://github.com/klauspost/compress/blob/v1.16.5/zstd/internal/xxhash/LICENSE.txt](https://github.com/klauspost/compress/blob/v1.16.5/zstd/internal/xxhash/LICENSE.txt)
+
+**github.com/mattn/go-runewidth**
+License: MIT
+[https://github.com/mattn/go-runewidth/blob/v0.0.16/LICENSE](https://github.com/mattn/go-runewidth/blob/v0.0.16/LICENSE)
+
+**github.com/mattn/go-sqlite3**
+License: MIT
+[https://github.com/mattn/go-sqlite3/blob/v1.14.22/LICENSE](https://github.com/mattn/go-sqlite3/blob/v1.14.22/LICENSE)
+
+**github.com/minio/highwayhash**
+License: Apache-2.0
+[https://github.com/minio/highwayhash/blob/v1.0.2/LICENSE](https://github.com/minio/highwayhash/blob/v1.0.2/LICENSE)
+
+**github.com/mirkobrombin/go-struct-flags/v1/binder**
+License: MIT
+[https://github.com/mirkobrombin/go-struct-flags/blob/v1.0.1/LICENSE](https://github.com/mirkobrombin/go-struct-flags/blob/v1.0.1/LICENSE)
+
+**github.com/mitchellh/colorstring**
+License: MIT
+[https://github.com/mitchellh/colorstring/blob/d06e56a500db/LICENSE](https://github.com/mitchellh/colorstring/blob/d06e56a500db/LICENSE)
+
+**github.com/mitchellh/go-homedir**
+License: MIT
+[https://github.com/mitchellh/go-homedir/blob/v1.1.0/LICENSE](https://github.com/mitchellh/go-homedir/blob/v1.1.0/LICENSE)
+
+**github.com/olekukonko/tablewriter**
+License: MIT
+[https://github.com/olekukonko/tablewriter/blob/v0.0.5/LICENSE.md](https://github.com/olekukonko/tablewriter/blob/v0.0.5/LICENSE.md)
+
+**github.com/opencontainers/go-digest**
+License: Apache-2.0
+[https://github.com/opencontainers/go-digest/blob/v1.0.0/LICENSE](https://github.com/opencontainers/go-digest/blob/v1.0.0/LICENSE)
+
+**github.com/opencontainers/image-spec/specs-go**
+License: Apache-2.0
+[https://github.com/opencontainers/image-spec/blob/v1.1.0-rc3/LICENSE](https://github.com/opencontainers/image-spec/blob/v1.1.0-rc3/LICENSE)
+
+**github.com/pkg/errors**
+License: BSD-2-Clause
+[https://github.com/pkg/errors/blob/v0.9.1/LICENSE](https://github.com/pkg/errors/blob/v0.9.1/LICENSE)
+
+**github.com/rivo/uniseg**
+License: MIT
+[https://github.com/rivo/uniseg/blob/v0.4.7/LICENSE.txt](https://github.com/rivo/uniseg/blob/v0.4.7/LICENSE.txt)
+
+**github.com/schollz/progressbar/v3**
+License: MIT
+[https://github.com/schollz/progressbar/blob/v3.13.1/LICENSE](https://github.com/schollz/progressbar/blob/v3.13.1/LICENSE)
+
+**github.com/shirou/gopsutil**
+License: BSD-3-Clause
+[https://github.com/shirou/gopsutil/blob/v3.21.11/LICENSE](https://github.com/shirou/gopsutil/blob/v3.21.11/LICENSE)
+
+**github.com/sirupsen/logrus**
+License: MIT
+[https://github.com/sirupsen/logrus/blob/v1.9.1/LICENSE](https://github.com/sirupsen/logrus/blob/v1.9.1/LICENSE)
+
+**github.com/spf13/cobra**
+License: Apache-2.0
+[https://github.com/spf13/cobra/blob/v1.8.0/LICENSE.txt](https://github.com/spf13/cobra/blob/v1.8.0/LICENSE.txt)
+
+**github.com/spf13/pflag**
+License: BSD-3-Clause
+[https://github.com/spf13/pflag/blob/v1.0.5/LICENSE](https://github.com/spf13/pflag/blob/v1.0.5/LICENSE)
+
+**github.com/tklauser/go-sysconf**
+License: BSD-3-Clause
+[https://github.com/tklauser/go-sysconf/blob/v0.3.12/LICENSE](https://github.com/tklauser/go-sysconf/blob/v0.3.12/LICENSE)
+
+**github.com/tklauser/numcpus**
+License: Apache-2.0
+[https://github.com/tklauser/numcpus/blob/v0.6.1/LICENSE](https://github.com/tklauser/numcpus/blob/v0.6.1/LICENSE)
+
+**github.com/vbatts/tar-split/archive/tar**
+License: BSD-3-Clause
+[https://github.com/vbatts/tar-split/blob/v0.11.3/LICENSE](https://github.com/vbatts/tar-split/blob/v0.11.3/LICENSE)
+
+**golang.org/x/sync/errgroup**
+License: BSD-3-Clause
+[https://cs.opensource.google/go/x/sync/+/v0.10.0\:LICENSE](https://cs.opensource.google/go/x/sync/+/v0.10.0:LICENSE)
+
+**golang.org/x/sys**
+License: BSD-3-Clause
+[https://cs.opensource.google/go/x/sys/+/v0.29.0\:LICENSE](https://cs.opensource.google/go/x/sys/+/v0.29.0:LICENSE)
+
+**golang.org/x/term**
+License: BSD-3-Clause
+[https://cs.opensource.google/go/x/term/+/v0.28.0\:LICENSE](https://cs.opensource.google/go/x/term/+/v0.28.0:LICENSE)
+
+**golang.org/x/text**
+License: BSD-3-Clause
+[https://cs.opensource.google/go/x/text/+/v0.21.0\:LICENSE](https://cs.opensource.google/go/x/text/+/v0.21.0:LICENSE)
+
+**gorm.io/driver/sqlite**
+License: MIT
+[https://github.com/go-gorm/sqlite/blob/v1.5.7/License](https://github.com/go-gorm/sqlite/blob/v1.5.7/License)
+
+**gorm.io/gorm**
+License: MIT
+[https://github.com/go-gorm/gorm/blob/v1.26.1/LICENSE](https://github.com/go-gorm/gorm/blob/v1.26.1/LICENSE)
+
+## Binaries
+
+**github.com/rootless-containers/rootlesskit**
+License: Apache-2.0
+[https://github.com/rootless-containers/rootlesskit/blob/master/LICENSE](https://github.com/rootless-containers/rootlesskit/blob/master/LICENSE)
+

NOTICE

@@ -3,6 +3,11 @@
   <img src="cpak-logo.svg#gh-dark-mode-only" height="120">
   <p>A fast, decentralized, portable,  powerful and low-memory footprint package 
     format for Linux.</p>
+  <p>
+    <a href="https://github.com/fabricatorsltd/FPAL/blob/main/LICENSE.md">
+      <img src="https://img.shields.io/badge/License-FPAL_1.0-orange.svg" alt="License: FPAL-1.0">
+    </a>
+  </p>
 </div>
 
 ---

README.md

@@ -1,4 +1,8 @@
-// Esempio cmd/audit.go
+/*
+* Copyright (c) 2025 FABRICATORS S.R.L.
+* Licensed under the Fabricators Public Access License (FPAL) v1.0
+* See https://github.com/fabricatorsltd/FPAL for details.
+ */
 package cmd
 
 import (

cmd/audit.go

@@ -1,3 +1,8 @@
+/*
+* Copyright (c) 2025 FABRICATORS S.R.L.
+* Licensed under the Fabricators Public Access License (FPAL) v1.0
+* See https://github.com/fabricatorsltd/FPAL for details.
+ */
 package cmd
 
 import (

cmd/dedup.go

@@ -1,3 +1,8 @@
+/*
+* Copyright (c) 2025 FABRICATORS S.R.L.
+* Licensed under the Fabricators Public Access License (FPAL) v1.0
+* See https://github.com/fabricatorsltd/FPAL for details.
+ */
 package cmd
 
 import (

cmd/extract.go

@@ -1,3 +1,8 @@
+/*
+* Copyright (c) 2025 FABRICATORS S.R.L.
+* Licensed under the Fabricators Public Access License (FPAL) v1.0
+* See https://github.com/fabricatorsltd/FPAL for details.
+ */
 package cmd
 
 import (

cmd/hostexec_client.go

@@ -1,3 +1,8 @@
+/*
+* Copyright (c) 2025 FABRICATORS S.R.L.
+* Licensed under the Fabricators Public Access License (FPAL) v1.0
+* See https://github.com/fabricatorsltd/FPAL for details.
+ */
 package cmd
 
 import (