diff --git a/bootstrap/bootstrap.sh b/bootstrap/bootstrap.sh
new file mode 100644
index 0000000..e4909d3
--- /dev/null
+++ b/bootstrap/bootstrap.sh
@@ -0,0 +1,13 @@
+#!/bin/sh
+
+red="\033[1;31m"
+green="\033[1;32m"
+yellow="\033[1;33m"
+blue="\033[1;34m"
+reset="\033[m"
+check="\xE2\x9C\x93"
+error="\xE2\x9C\x95"
+warning="\x21"
+question="\x3F"
+
+mkdirs() {}
diff --git a/busybox b/busybox
new file mode 100644
index 0000000..b22a17c
--- /dev/null
+++ b/busybox
@@ -0,0 +1,72 @@
+#
+# busybox
+#
+
+# Package metadata
+PACKAGE_NAME="busybox"
+PACKAGE_VER="1.36.0"
+PACKAGE_DESC="Busybox embedded UNIX utilities"
+MAINTAINER="liamwaldron@everestlinux.org"
+LICENSE="GPL v2"
+ARCH="x86"
+INCLUDED_FILES=("/bin/busybox" "/linuxrc")
+
+# Integrity checking
+SHA256SUMS="2d60a4df73d14da518c3e8a7d51830c35918b54572029624ea4b86e8298fb528"
+
+# Dependency information
+DEPENDS=("")
+CONFLICTS=("")
+
+# Source information
+PACKAGE_SRC="https://git.busybox.net/busybox"
+SOURCES=("busybox-1.36.0")
+
+# Installation
+getsource() {
+	wget $PACKAGE_SRC
+	cd ${SOURCES[0]}
+}
+
+buildpkg() {
+	curl https://git.everestlinux.org/EverestLinux/sys-pkg-configs/raw/branch/main/config.busybox-1.36.0 -o .config
+	make ARCH="x86_64" CROSS_COMPILE="x86_64-linux-musl-" # these MUST be set
+}
+
+installpkg() {
+	make ARCH="x86_64" CROSS_COMPILE="x86_64-linux-musl-" \
+	CONFIG_PREFIX="${BLDR_OUT_DIR}/pkgs/busybox" install
+	cp -v examples/depmod.pl ${TOOLCHAIN_PATH}/bin
+	chmod -v 755 ${TOOLCHAIN_PATH}/bin/depmod.pl
+	touch ${BLDR_OUT_DIR}/pkgs/busybox/.ispkg
+	# Never install files to /bin, they will get
+	# overwritten when the user pulls a new update
+}
+
+installpkg_system() {
+	printf "Not supported for this package.\n"
+	exit 1
+}
+
+removepkg() {
+	rm -rf ${BLDR_OUT_DIR}/pkgs/busybox
+}
+
+removepkg_system() {
+	printf "Not supported for this package.\n"
+	exit 1
+}
+
+updatepkg() {
+	buildpkg "$@"
+	installpkg "$@"
+}
+
+updatepkg_system() {
+	printf "Not supported for this package.\n"
+	exit 1
+}
+
+#
+# end busybox
+#
diff --git a/curl/a.out b/curl/a.out
new file mode 100755
index 0000000..f0428af
Binary files /dev/null and b/curl/a.out differ
diff --git a/curl/libcurl.c b/curl/libcurl.c
new file mode 100644
index 0000000..c1cba87
--- /dev/null
+++ b/curl/libcurl.c
@@ -0,0 +1,83 @@
+/***************************************************************************
+ *                                  _   _ ____  _
+ *  Project                     ___| | | |  _ \| |
+ *                             / __| | | | |_) | |
+ *                            | (__| |_| |  _ <| |___
+ *                             \___|\___/|_| \_\_____|
+ *
+ * Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
+ *
+ * This software is licensed as described in the file COPYING, which
+ * you should have received as part of this distribution. The terms
+ * are also available at https://curl.se/docs/copyright.html.
+ *
+ * You may opt to use, copy, modify, merge, publish, distribute and/or sell
+ * copies of the Software, and permit persons to whom the Software is
+ * furnished to do so, under the terms of the COPYING file.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ * SPDX-License-Identifier: curl
+ *
+ ***************************************************************************/
+/* <DESC>
+ * Simple HTTPS GET
+ * </DESC>
+ */
+#include <stdio.h>
+#include <curl/curl.h>
+
+int main(void)
+{
+  CURL *curl;
+  CURLcode res;
+
+  curl_global_init(CURL_GLOBAL_DEFAULT);
+
+  curl = curl_easy_init();
+  if(curl) {
+    curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
+
+#ifdef SKIP_PEER_VERIFICATION
+    /*
+     * If you want to connect to a site who is not using a certificate that is
+     * signed by one of the certs in the CA bundle you have, you can skip the
+     * verification of the server's certificate. This makes the connection
+     * A LOT LESS SECURE.
+     *
+     * If you have a CA cert for the server stored someplace else than in the
+     * default bundle, then the CURLOPT_CAPATH option might come handy for
+     * you.
+     */
+    curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0L);
+#endif
+
+#ifdef SKIP_HOSTNAME_VERIFICATION
+    /*
+     * If the site you are connecting to uses a different host name that what
+     * they have mentioned in their server certificate's commonName (or
+     * subjectAltName) fields, libcurl refuses to connect. You can skip this
+     * check, but it makes the connection insecure.
+     */
+    curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 0L);
+#endif
+
+    /* cache the CA cert bundle in memory for a week */
+    curl_easy_setopt(curl, CURLOPT_CA_CACHE_TIMEOUT, 604800L);
+
+    /* Perform the request, res gets the return code */
+    res = curl_easy_perform(curl);
+    /* Check for errors */
+    if(res != CURLE_OK)
+      fprintf(stderr, "curl_easy_perform() failed: %s\n",
+              curl_easy_strerror(res));
+
+    /* always cleanup */
+    curl_easy_cleanup(curl);
+  }
+
+  curl_global_cleanup();
+
+  return 0;
+}
diff --git a/etc/example.cfg b/etc/example.cfg
index ed1d6a5..6867739 100644
--- a/etc/example.cfg
+++ b/etc/example.cfg
@@ -23,6 +23,11 @@ GLACIER_ALLOW_SERVICES = false;
 # If, for any reason, a package uses a custom license, you can simply add it to this list.
 GLACIER_ALLOWED_LICENSES = [ "GPL", "MIT", "BSD", "APACHE" ]
 
+# Package integrity checking
+# WARNING: It is strongly recommended to keep this enabled.
+# This ensures all incoming packages are not tampered with.
+GLACIER_DO_INT_CHECK = true;
+
 # Profile-specific settings
 # WARNING: The settings below are tied into the system's profile. Changing any of these manually
 # will certainly cause breakage.
diff --git a/glacier.cfg b/glacier.cfg
new file mode 100644
index 0000000..6867739
--- /dev/null
+++ b/glacier.cfg
@@ -0,0 +1,39 @@
+#
+# glacier.cfg
+# The settings defined in this file will be loaded when Glacier is called.
+# For more information on this file, see https://www.everestlinux.org/docs/intro-to-glacier
+#
+
+# Services
+# Whether Glacier will allow external service files to be called
+# WARNING: Services may pose a security risk to your system. Only use services you trust.
+GLACIER_ALLOW_SERVICES = false;
+
+# Permitted software licenses
+# When installing a package, Glacier will check its license. If said license is listed here,
+# it will proceed with the installation. Otherwise, it'll return an error.
+# For more information on licenses listed below, see https://www.everestlinux.org/docs/intro-to-glacier
+# Some common license names with their designation codes are:
+# - GNU General Public License (GPL)
+# - MIT License (MIT)
+# - BSD License (BSD)
+# - Apache license (APACHE)
+# - Binary-redistributable software (BIN-REDIST)
+# - End-user-license-agreement (EULA)
+# If, for any reason, a package uses a custom license, you can simply add it to this list.
+GLACIER_ALLOWED_LICENSES = [ "GPL", "MIT", "BSD", "APACHE" ]
+
+# Package integrity checking
+# WARNING: It is strongly recommended to keep this enabled.
+# This ensures all incoming packages are not tampered with.
+GLACIER_DO_INT_CHECK = true;
+
+# Profile-specific settings
+# WARNING: The settings below are tied into the system's profile. Changing any of these manually
+# will certainly cause breakage.
+# If, for any reason, you must change any of these settings, use `glacier-mkprofile`.
+# Profile migration may cause breakage. Doing a clean install is the preferred method for changing profiles.
+
+### DO NOT EDIT ANY SETTINGS BELOW THIS LINE ###
+### DO NOT EDIT ANY SETTINGS BELOW THIS LINE ###
+### DO NOT EDIT ANY SETTINGS BELOW THIS LINE ###
diff --git a/include/glacier_log.h b/include/glacier_log.h
index 47eccad..7a9851e 100644
--- a/include/glacier_log.h
+++ b/include/glacier_log.h
@@ -60,6 +60,7 @@ void warnlog(char MSG[]);
 
 /*
  * errlog
+ *
  * DESCRIPTION: Errlog outputs a stylized error message. It follows Glacier's uniform CLI style.
  * PARAMETERS:
  * 		char MSG[] -> The message to output
diff --git a/include/glacier_pkgops.h b/include/glacier_pkgops.h
new file mode 100644
index 0000000..f546bc8
--- /dev/null
+++ b/include/glacier_pkgops.h
@@ -0,0 +1,72 @@
+/*
+ * 	glacier_pkgops.h - Package-related function declarations for libglacier
+ *
+ * 	This file is part of Glacier.
+ *
+ * 	Glacier is free software: you can redistribute it and/or modify it under the terms of the
+ * 	GNU General Public License as published by the Free Software Foundation, either
+ * 	version 3 of the License, or (at your option) any later version.
+ *
+ * 	Glacier is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+ * 	without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+ * 	PARTICULAR PURPOSE. See the GNU General Public License for more details.
+ *
+ * 	You should have received a copy of the GNU General Public License along with Glacier. If
+ * 	not, see <https://www.gnu.org/licenses/>.
+ */
+
+#ifndef GLACIERPKGOPS_H_
+#define GLACIERPKGOPS_H_
+
+/*
+ * parse_pkg_file
+ *
+ * DESCRIPTION: Parse_pkg_file parses a Glacier-compatible package.
+ * PARAMETERS:
+ * 		char fname[] -> The package file to parse
+ * RETURN VAUES:
+ * 		0 on success, 1 on failure
+ * CAVEATS:
+ * 		None.
+ * EXAMPLE:
+ * 		init_config();
+ */
+
+int parse_pkg_file();
+
+/*
+ * download_package_sources
+ *
+ * DESCRIPTION: Download_package_sources downloads the source code for a package.
+ * PARAMETERS:
+ * 		char PACKAGE[] -> The package name to download
+ * RETURN VALUES:
+ * 		0 on success, 1 on failure
+ * CAVEATS:
+ * 		The URL for the package repository will autofill.
+ * EXAMPLE:
+ * 		download_package_sources("vim");
+ */
+
+int download_package_source();
+
+/*
+ * run_build_task
+ *
+ * DESCRIPTION: Execute the package's pkgops file with parameter 'build'.
+ * PARAMETERS:
+ * 		None.
+ * RETURN VALUES:
+ * 		0 on success, 1 on failure
+ * CAVEATS:
+ * 		Can only work on one package at a time. Implement in a loop for multiple.
+ * EXAMPLE:
+ * 		run_build_task();
+ */
+
+int run_build_task();
+
+
+
+
+#endif
diff --git a/include/glacier_runtime.h b/include/glacier_runtime.h
index c9d731f..9113731 100644
--- a/include/glacier_runtime.h
+++ b/include/glacier_runtime.h
@@ -22,3 +22,16 @@
  * runtime_exists
  *
  * DESCRIPTION: runtime_exists checks if all necessary runtime files exist.
+ * PARAMETERS:
+ * 		None.
+ * RETURN VALUES:
+ * 		None.
+ * CAVEATS:
+ * 		None.
+ * EXAMPLE:
+ * 		runtime_exists();
+ */
+
+void runtime_exists();
+
+#endif
diff --git a/libglacier.c b/libglacier.c
index 71172d6..58d77b2 100644
--- a/libglacier.c
+++ b/libglacier.c
@@ -16,11 +16,17 @@
  */
 
 #include <color.h>
+#include <errno.h>
+#include <lauxlib.h>
 #include <libconfig.h>
+#include <locale.h>
+#include <lua.h>
+#include <lualib.h>
 #include <stdbool.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <unistd.h>
+#include <wchar.h>
 
 /* Global variables */
 
@@ -29,6 +35,7 @@ config_setting_t *setting;
 const char str;
 int GLACIER_ALLOW_SERVICES;
 char GLACIER_ALLOWED_LICENSES;
+int GLACIER_DO_INT_CHECK;
 
 const char *runtime_files[] = { "/etc/glacier.cfg", "/etc/glacier/call-hooks", "/etc/make.conf" };
 
@@ -151,8 +158,135 @@ load_setting_from_config()
 	else
 		warnlog("GLACIER_SERVICES_ALLOWED is not defined in glacier.cfg.");
 
+	if(config_lookup_bool(&cfg, "GLACIER_DO_INT_CHECK", &GLACIER_DO_INT_CHECK))
+		printf("Integrity checking enabled: %s\n", GLACIER_DO_INT_CHECK ? "true" : "false");
+	else
+		warnlog("GLACIER_DO_INT_CHECK is not defined in glacier.cfg.");
+
 }
 
+int
+download_package_sources(char PACKAGE[])
+{
+	printf(COL_BLUE "[i] " COL_RESET "Downloading package archive for %s...\n", PACKAGE);
+	if (GLACIER_SYSTEM_PROFILE == "x86-musl") {
+		execl("/glacier/tools/wget", "https://git.everestlinux.org/EverestLinux/epkgs-x86-musl/", NULL);
+	} else {
+		printf(COL_RED "[x] " COL_RESET "System profile '%s' is not supported.\n", GLACIER_SYSTEM_PROFILE);
+	}
+}
+
+int
+run_build_task()
+{
+	execl("pkgops", "build", NULL);
+}
+
+int
+run_install_task()
+{
+	execl("pkgops", "install", NULL);
+}
+
+int
+run_update_task()
+{
+	execl("pkgops", "update", NULL);
+}
+
+int
+run_remove_task()
+{
+	execl("pkgops", "remove", NULL);
+}
+
+int
+run_s_install_task()
+{
+	execl("pkgops", "s_install", NULL);
+}
+
+int
+run_s_update_task()
+{
+	execl("pkgops", "s_update", NULL);
+}
+
+int
+run_s_remove_task()
+{
+	execl("pkgops", "s_remove", NULL);
+}
+
+/*
+void
+init_lua()
+{
+	lua_State *L = luaL_newstate();
+	luaL_openlibs(L);
+}
+
+int
+load_lua_file(char luafile[])
+{
+	if (luaL_loadfile(L, luafile)) {
+		fprintf(stderr, "LIBRARY ERROR: Could not open package %s. Does it exist?\n");
+		lua_close(L);
+		exit(1);
+	}
+	return 0;
+}
+
+int
+exec_lua_file(char luafile[])
+{
+	if (lua_pcall(L, 0, 0, 0)) {
+		fprintf(stderr, "LIBRARY ERROR: Failed to execute package %s.\n");
+		lua_close(L);
+		exit(1);
+	}
+	return 0;
+}
+
+void
+die_lua()
+{
+	lua_close(L);
+}
+*/
+
+int
+parse_pkg_file(char fname[])
+{
+	if (fname == NULL) {
+		fprintf(stderr, "LIBRARY ERROR: fname not specified\n");
+		exit(1);
+	}
+
+	if (access(fname, F_OK) != 0) {
+		fprintf(stderr, COL_RED "[x] " COL_RESET "Package file '%s' does not exist.\n", fname);
+		exit(1);
+	}
+
+
+	FILE *pkg;
+
+	char filename[100], contents;
+
+	pkg = fopen(fname, "r");
+	infolog("Parsing package file...");
+	contents = fgetc(pkg);
+	while (contents != EOF) {
+		printf("%c", contents);
+		contents = fgetc(pkg);
+	}
+
+	fclose(pkg);
+
+	return 0;
+}
+
+
 int
 main(int argc, char *argv[])
 {
@@ -162,4 +296,9 @@ main(int argc, char *argv[])
 	init_config();
 	load_setting_from_config();
 	die_config();
+	parse_pkg_file("busybox");
+	/* init_lua();
+	load_lua_file("lua/testpkg.lua");
+	exec_lua_file("lua/testpkg.lua");
+	die_lua(); */
 }
diff --git a/libglacier.test b/libglacier.test
new file mode 100755
index 0000000..095ef12
Binary files /dev/null and b/libglacier.test differ
diff --git a/lua/Makefile b/lua/Makefile
new file mode 100644
index 0000000..93336c9
--- /dev/null
+++ b/lua/Makefile
@@ -0,0 +1,13 @@
+include ../config.mk
+
+all:
+	@echo "Run 'make test' to generate a test binary."
+	@echo "Run 'make clean' to remove the generated binary."
+
+test:
+	$(CC) -I/usr/include/lua5.2 \
+		-Wall -llua \
+		lua.c -o lua.test
+
+clean:
+	rm lua.test
diff --git a/lua/lua.c b/lua/lua.c
new file mode 100644
index 0000000..f2dad43
--- /dev/null
+++ b/lua/lua.c
@@ -0,0 +1,37 @@
+#include <color.h>
+#include <lua.h>
+#include <lualib.h>
+#include <lauxlib.h>
+#include <locale.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <wchar.h>
+
+const wchar_t check = 0x2713;
+
+int
+main(int argc, char **argv)
+{
+	printf(COL_BLUE "[i] " COL_RESET "Initializing Lua state...\n");
+	lua_State *L = luaL_newstate();
+	luaL_openlibs(L);
+
+	printf(COL_BLUE "[i] " COL_RESET "Loading test package...\n");
+	if (luaL_loadfile(L, "testpkg.lua")) {
+		fprintf(stderr, COL_RED "[x] " COL_RESET "Failed to load test package file.\n");
+		lua_close(L);
+		exit(1);
+	}
+
+	printf(COL_BLUE "[i] " COL_RESET "Executing test package...\n");
+	if (lua_pcall(L, 0, 0, 0)) {
+		fprintf(stderr, COL_RED "[x] " COL_RESET "Failed to execute test package file.\n");
+		lua_close(L);
+		exit(1);
+	}
+
+	lua_close(L);
+	printf("Closed lua libraries\n");
+	return 0;
+}
+
diff --git a/lua/lua.test b/lua/lua.test
new file mode 100755
index 0000000..e079fd6
Binary files /dev/null and b/lua/lua.test differ
diff --git a/lua/testpkg.lua b/lua/testpkg.lua
new file mode 100644
index 0000000..78f0344
--- /dev/null
+++ b/lua/testpkg.lua
@@ -0,0 +1,3 @@
+#!/usr/bin/lua
+
+print("Executed lua file")
diff --git a/pkg/pm b/pkg/pm
new file mode 160000
index 0000000..b387d1d
--- /dev/null
+++ b/pkg/pm
@@ -0,0 +1 @@
+Subproject commit b387d1d3bbbdc4ae9b66ac37a001415601b04429
diff --git a/wget b/wget
new file mode 100755
index 0000000..7e2a0c7
Binary files /dev/null and b/wget differ