diff --git a/.github/ISSUE_TEMPLATE/bug_report.md b/.github/ISSUE_TEMPLATE/bug_report.md
new file mode 100644
index 0000000..55d97b6
--- /dev/null
+++ b/.github/ISSUE_TEMPLATE/bug_report.md
@@ -0,0 +1,27 @@
+---
+name: Bug report
+about: Create a report to help us improve
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+<!-- Please do not open bug reports if you're using Manjaro.
+ALMA does not support Manjaro. If it works then have fun, but if it doesn't then I won't fix it -->
+
+**Describe the bug** 
+A clear and concise description of what the bug is.
+
+**To Reproduce**
+Steps to reproduce the behavior:
+1. Go to '...'
+2. Click on '....'
+3. Scroll down to '....'
+4. See error
+
+**Expected behavior**
+A clear and concise description of what you expected to happen.
+
+**Additional context**
+Add any other context about the problem here.
diff --git a/.github/ISSUE_TEMPLATE/feature_request.md b/.github/ISSUE_TEMPLATE/feature_request.md
new file mode 100644
index 0000000..96fa0c4
--- /dev/null
+++ b/.github/ISSUE_TEMPLATE/feature_request.md
@@ -0,0 +1,22 @@
+---
+name: Feature request
+about: Suggest an idea for this project
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+<!-- Before requesting a feature, note that ALMA isn't intended to be a generic Arch Linux installer. It's an installer focused on creating mutable live environments. In addition, avoid asking for new features which can be easily implemented using the preset system -->
+
+**Is your feature request related to a problem? Please describe.**
+A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
+
+**Describe the solution you'd like**
+A clear and concise description of what you want to happen.
+
+**Describe alternatives you've considered**
+A clear and concise description of any alternative solutions or features you've considered.
+
+**Additional context**
+Add any other context or screenshots about the feature request here.
diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
new file mode 100644
index 0000000..f656169
--- /dev/null
+++ b/.github/workflows/rust.yml
@@ -0,0 +1,31 @@
+name: Rust
+
+on:
+  push:
+  pull_request:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions-rs/toolchain@v1
+        with:
+          toolchain: stable
+          profile: minimal
+          override: true
+          components: rustfmt, clippy
+      - uses: actions-rs/cargo@v1
+        name: Check format
+        with:
+          command: fmt
+          args: --all -- --check
+      - uses: actions-rs/cargo@v1
+        name: Run clippy
+        with:
+          command: clippy
+          args: --all-targets --locked -- -D warnings
+      - uses: actions-rs/cargo@v1
+        name: Run tests
+        with:
+          command: test
diff --git a/Cargo.lock b/Cargo.lock
index b59aef7..e7ea7f2 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -4,602 +4,618 @@
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+checksum = "8716408b8bc624ed7f65d223ddb9ac2d044c0547b6fa4b0d554f3a9540496ada"
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- "memchr 2.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "memchr",
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 [[package]]
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- "toml 0.5.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "which 4.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "anyhow",
+ "byte-unit",
+ "console",
+ "dialoguer",
+ "env_logger 0.8.2",
+ "log",
+ "nix",
+ "pretty_env_logger",
+ "serde",
+ "structopt",
+ "tempfile",
+ "toml",
+ "which",
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+checksum = "ee49baf6cb617b853aa8d93bf420db2383fab46d314482ca2803b40d5fde979b"
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- "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi",
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 [[package]]
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+checksum = "85bb70cc08ec97ca5450e6eba421deeea5f172c0fc61f78b5357b2a8e8be195f"
 
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- "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "hermit-abi",
+ "libc",
+ "winapi",
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 [[package]]
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+checksum = "cf1de2fe8c75bc145a2f577add951f8134889b4795d47466a54a5c846d691693"
 
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+checksum = "1c8758c32833faaae35b24a73d332e62d0528e89076ae841c63940e37008b153"
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- "vec_map 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ansi_term",
+ "atty",
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+ "strsim",
+ "textwrap",
+ "unicode-width",
+ "vec_map",
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 [[package]]
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+ "winapi",
+ "winapi-util",
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 [[package]]
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+ "regex",
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+]
+
+[[package]]
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- "unicode-segmentation 1.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3c1ad908cc71012b7bea4d0c53ba96a8cba9962f048fa68d143376143d863b7a"
+
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- "rand_hc 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
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+ "libc",
+ "rand_chacha",
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+ "ppv-lite86",
+ "rand_core",
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 [[package]]
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 dependencies = [
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 [[package]]
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 [[package]]
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+checksum = "2439c63f3f6139d1b57529d16bc3b8bb855230c8efcc5d3a896c8bea7c3b1e84"
 
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+ "aho-corasick",
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 [[package]]
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-"checksum termcolor 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "bb6bfa289a4d7c5766392812c0a1f4c1ba45afa1ad47803c11e1f407d846d75f"
-"checksum terminal_size 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)" = "8038f95fc7a6f351163f4b964af631bd26c9e828f7db085f2a84aca56f70d13b"
-"checksum termios 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)" = "6f0fcee7b24a25675de40d5bb4de6e41b0df07bc9856295e7e2b3a3600c400c2"
-"checksum textwrap 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)" = "d326610f408c7a4eb6f51c37c330e496b08506c9457c9d34287ecc38809fb060"
-"checksum thiserror 1.0.19 (registry+https://github.com/rust-lang/crates.io-index)" = "b13f926965ad00595dd129fa12823b04bbf866e9085ab0a5f2b05b850fbfc344"
-"checksum thiserror-impl 1.0.19 (registry+https://github.com/rust-lang/crates.io-index)" = "893582086c2f98cde18f906265a65b5030a074b1046c674ae898be6519a7f479"
-"checksum thread_local 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "d40c6d1b69745a6ec6fb1ca717914848da4b44ae29d9b3080cbee91d72a69b14"
-"checksum toml 0.5.6 (registry+https://github.com/rust-lang/crates.io-index)" = "ffc92d160b1eef40665be3a05630d003936a3bc7da7421277846c2613e92c71a"
-"checksum unicode-segmentation 1.6.0 (registry+https://github.com/rust-lang/crates.io-index)" = "e83e153d1053cbb5a118eeff7fd5be06ed99153f00dbcd8ae310c5fb2b22edc0"
-"checksum unicode-width 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)" = "caaa9d531767d1ff2150b9332433f32a24622147e5ebb1f26409d5da67afd479"
-"checksum unicode-xid 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "826e7639553986605ec5979c7dd957c7895e93eabed50ab2ffa7f6128a75097c"
-"checksum vec_map 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)" = "f1bddf1187be692e79c5ffeab891132dfb0f236ed36a43c7ed39f1165ee20191"
-"checksum version_check 0.9.2 (registry+https://github.com/rust-lang/crates.io-index)" = "b5a972e5669d67ba988ce3dc826706fb0a8b01471c088cb0b6110b805cc36aed"
-"checksum void 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)" = "6a02e4885ed3bc0f2de90ea6dd45ebcbb66dacffe03547fadbb0eeae2770887d"
-"checksum wasi 0.9.0+wasi-snapshot-preview1 (registry+https://github.com/rust-lang/crates.io-index)" = "cccddf32554fecc6acb585f82a32a72e28b48f8c4c1883ddfeeeaa96f7d8e519"
-"checksum which 4.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "bd3edc3cf5458851a4d6a2329232bd5f42c7f9bbe4c4782c4ef9ce37e5d101b2"
-"checksum winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)" = "8093091eeb260906a183e6ae1abdba2ef5ef2257a21801128899c3fc699229c6"
-"checksum winapi-i686-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
-"checksum winapi-util 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)" = "70ec6ce85bb158151cae5e5c87f95a8e97d2c0c4b001223f33a334e3ce5de178"
-"checksum winapi-x86_64-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
+[[package]]
+name = "zeroize"
+version = "0.9.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "45af6a010d13e4cf5b54c94ba5a2b2eba5596b9e46bf5875612d332a1f2b3f86"
diff --git a/Cargo.toml b/Cargo.toml
index 425db39..e81c669 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -11,10 +11,10 @@ structopt = "0.3"
 tempfile = "3"
 serde = { version = "1", features = ["derive"] }
 toml = "0.5"
-byte-unit = "3"
-nix = "0.17"
-env_logger = "0.7"
+byte-unit = "4.0"
+nix = "0.19"
+env_logger = "0.8"
 pretty_env_logger = "0.4"
-dialoguer = "0.6"
-console = "0.11"
+dialoguer = "0.7"
+console = "0.13"
 anyhow = "1"
diff --git a/README.md b/README.md
index a43b614..392d89a 100644
--- a/README.md
+++ b/README.md
@@ -17,6 +17,11 @@ date without having to boot it. Encrypting the root partition is as easy as prov
 
 You can either build the project using cargo build or install the `alma` package from AUR.
 
+### Using Arch Linux derivatives
+
+Using Arch Linux derivatives, such as Manjaro, isn't supported it ALMA. It may work and may not. Please do not open bugs or feature 
+requests if you are not using the official Arch Linux.
+
 ## Usage
 
 ### Image creation on removable device
@@ -131,12 +136,45 @@ set -eux
 useradd -m ${ALMA_USER}
 passwd ${ALMA_USER}
 usermod -G wheel -a ${ALMA_USER}
+echo "%wheel ALL=(ALL) ALL" > /etc/sudoers.d/wheel
 """
 environment_variables = ["ALMA_USER"]
 ```
 
 Note that shared directories in the preset scripts are mounted as bind mounts, so they are *not* mounted read-only. Any changes the custom script makes to the shared directory will be carried out in the preset shared directory of the host system, so be sure to copy (not move) files from the shared directories.
 
+### Order of execution
+
+ALMA installs the packages and presets in the following order:
+
+1. All non-AUR packages are installed
+2. If AUR packages are present in the toml files, yay (or another
+   specified AUR helper) is installed
+3. All AUR packages are installed.
+4. Preset scripts are executed according to their filenames in
+   alphanumeric order.
+
+Note this may mean you have to workaround some package installations if
+they depend on preset scripts.
+
+For example, at the moment you cannot install Rust-based AUR packages in
+the `aur_packages` array of the Preset TOMLs if you use rustup,
+since rustup needs to be given the toolchain to
+install first. This can be worked around by carrying out the AUR
+package installation inside the preset script itself in these cases.
+
+## Troubleshooting
+### mkinitcpio: /etc/mkinitcpio.d/linux.preset: No such file or directory
+
+Ensure you have both the `linux` and `base` packages installed. Note
+that only Arch Linux is supported, not Arch Linux derivatives such as
+Manjaro.
+
+### Problem opening /dev/... for reading! Error is 123.
+
+Delete all partitions on the disk first (e.g. with gparted) and try
+again.
+
 ## Similar projects
 
 * [NomadBSD](http://nomadbsd.org/)
diff --git a/azure-pipelines.yml b/azure-pipelines.yml
deleted file mode 100644
index aa07de9..0000000
--- a/azure-pipelines.yml
+++ /dev/null
@@ -1,37 +0,0 @@
-stages:
-  - stage: Check
-    jobs:
-      - job: Check
-        displayName: Sanity Check
-        pool:
-          vmImage: 'ubuntu-16.04'
-        container: 'rust:latest'
-        steps:
-          - script: rustup component add clippy rustfmt
-            displayName: Install clippy and rustfmt
-          - script: cargo fmt -- --check
-            displayName: Check Formatting
-          - script: cargo check --all
-            displayName: Check
-          - script: cargo clippy
-            displayName: Clippy
-
-  - stage: Build
-    jobs:
-      - job: BuildDocker
-        displayName: Build Docker Image
-        pool:
-          vmImage: 'ubuntu-16.04'
-        steps:
-          - task: Docker@2
-            displayName: Login to Dockerhub
-            inputs:
-              command: login
-              containerRegistry: Dockerhub
-          - task: Docker@2
-            displayName: Build and Push
-            inputs:
-              command: buildAndPush
-              repository: darwish/alma
-              tags: |
-                latest
diff --git a/src/args.rs b/src/args.rs
index 346f4c4..909c77c 100644
--- a/src/args.rs
+++ b/src/args.rs
@@ -38,6 +38,12 @@ pub struct CreateCommand {
     #[structopt(parse(from_os_str))]
     pub path: Option<PathBuf>,
 
+    /// Path to a pacman.conf file which will be used to pacstrap packages into the image.
+    ///
+    /// This pacman.conf will also be copied into the resulting Arch Linux image.
+    #[structopt(short = "c", long = "pacman-conf", value_name = "pacman_conf")]
+    pub pacman_conf: Option<PathBuf>,
+
     /// Additional packages to install
     #[structopt(short = "p", long = "extra-packages", value_name = "package")]
     pub extra_packages: Vec<String>,
@@ -46,6 +52,10 @@ pub struct CreateCommand {
     #[structopt(long = "aur-packages", value_name = "aurpackage")]
     pub aur_packages: Vec<String>,
 
+    /// Boot partition size in megabytes
+    #[structopt(long = "boot-size")]
+    pub boot_size: Option<u32>,
+
     /// Enter interactive chroot before unmounting the drive
     #[structopt(short = "i", long = "interactive")]
     pub interactive: bool,
@@ -78,7 +88,7 @@ pub struct CreateCommand {
     #[structopt(long = "allow-non-removable")]
     pub allow_non_removable: bool,
 
-    #[structopt(long = "aur-helper", possible_values=&["yay"], default_value="yay")]
+    #[structopt(long = "aur-helper", possible_values=&["paru", "yay"], default_value="yay")]
     pub aur_helper: AurHelper,
 }
 
diff --git a/src/aur.rs b/src/aur.rs
index 3350fc5..9ab3ef6 100644
--- a/src/aur.rs
+++ b/src/aur.rs
@@ -3,6 +3,7 @@ use std::str::FromStr;
 
 pub struct AurHelper {
     pub name: String,
+    pub package_name: String,
     pub install_command: Vec<String>,
 }
 
@@ -11,8 +12,28 @@ impl FromStr for AurHelper {
 
     fn from_str(s: &str) -> anyhow::Result<Self> {
         match s {
-            "yay" => Ok(AurHelper {
+            "paru" => Ok(Self {
+                name: String::from("paru"),
+                package_name: String::from("paru-bin"),
+                install_command: vec![
+                    String::from("paru"),
+                    String::from("-S"),
+                    String::from("--skipreview"),
+                    String::from("--noupgrademenu"),
+                    String::from("--useask"),
+                    String::from("--removemake"),
+                    String::from("--norebuild"),
+                    String::from("--nocleanafter"),
+                    String::from("--noredownload"),
+                    String::from("--mflags"),
+                    String::from(""),
+                    String::from("--noconfirm"),
+                    String::from("--batchinstall"),
+                ],
+            }),
+            "yay" => Ok(Self {
                 name: String::from("yay"),
+                package_name: String::from("yay-bin"),
                 install_command: vec![
                     String::from("yay"),
                     String::from("-S"),
@@ -23,7 +44,6 @@ impl FromStr for AurHelper {
                     String::from("--useask"),
                     String::from("--removemake"),
                     String::from("--norebuild"),
-                    String::from("--noconfirm"),
                     String::from("--answeredit"),
                     String::from("None"),
                     String::from("--answerclean"),
diff --git a/src/main.rs b/src/main.rs
index 2d743c1..8d3298a 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -162,12 +162,14 @@ fn create(command: args::CreateCommand) -> anyhow::Result<()> {
     info!("Partitioning the block device");
     debug!("{:?}", disk_path);
 
+    let boot_size = command.boot_size.unwrap_or(300);
+
     sgdisk
         .execute()
         .args(&[
             "-Z",
             "-o",
-            "--new=1::+250M",
+            &format!("--new=1::+{}M", boot_size),
             "--new=2::+1M",
             "--largest-new=3",
             "--typecode=1:EF00",
@@ -186,7 +188,7 @@ fn create(command: args::CreateCommand) -> anyhow::Result<()> {
     let root_partition_base = storage_device.get_partition(constants::ROOT_PARTITION_INDEX)?;
     let encrypted_root = if let Some(cryptsetup) = &cryptsetup {
         info!("Encrypting the root filesystem");
-        EncryptedDevice::prepare(&cryptsetup, &root_partition_base)?;
+        EncryptedDevice::prepare(cryptsetup, &root_partition_base)?;
         Some(EncryptedDevice::open(
             cryptsetup,
             &root_partition_base,
@@ -225,13 +227,24 @@ fn create(command: args::CreateCommand) -> anyhow::Result<()> {
 
     packages.extend(presets.packages);
 
-    if !presets.aur_packages.is_empty() {
-        packages.extend(constants::AUR_DEPENDENCIES.iter().map(|s| String::from(*s)));
-    }
+    let aur_pacakges = {
+        let mut p = vec![String::from("shim-signed")];
+        p.extend(presets.aur_packages);
+        p.extend(command.aur_packages);
+        p
+    };
+
+    packages.extend(constants::AUR_DEPENDENCIES.iter().map(|s| String::from(*s)));
+
+    let pacman_conf_path = command
+        .pacman_conf
+        .unwrap_or_else(|| "/etc/pacman.conf".into());
 
     info!("Bootstrapping system");
     pacstrap
         .execute()
+        .arg("-C")
+        .arg(&pacman_conf_path)
         .arg("-c")
         .arg(mount_point.path())
         .args(packages)
@@ -239,6 +252,10 @@ fn create(command: args::CreateCommand) -> anyhow::Result<()> {
         .run()
         .context("Pacstrap error")?;
 
+    // Copy pacman.conf to the image.
+    fs::copy(pacman_conf_path, mount_point.path().join("etc/pacman.conf"))
+        .context("Failed copying pacman.conf")?;
+
     let fstab = fix_fstab(
         &genfstab
             .execute()
@@ -257,84 +274,85 @@ fn create(command: args::CreateCommand) -> anyhow::Result<()> {
         .run()
         .context("Failed to delete the root password")?;
 
-    if !presets.aur_packages.is_empty() {
-        arch_chroot
-            .execute()
-            .arg(mount_point.path())
-            .args(&["useradd", "-m", "aur"])
-            .run()
-            .context("Failed to create temporary user to install AUR packages")?;
+    info!("Setting locale");
+    fs::OpenOptions::new()
+        .append(true)
+        .write(true)
+        .open(mount_point.path().join("etc/locale.gen"))
+        .and_then(|mut locale_gen| locale_gen.write_all(b"en_US.UTF-8 UTF-8\n"))
+        .context("Failed to create locale.gen")?;
+    fs::write(
+        mount_point.path().join("etc/locale.conf"),
+        "LANG=en_US.UTF-8",
+    )
+    .context("Failed to write to locale.conf")?;
+    arch_chroot
+        .execute()
+        .arg(mount_point.path())
+        .arg("locale-gen")
+        .run()
+        .context("locale-gen failed")?;
 
-        arch_chroot
-            .execute()
-            .arg(mount_point.path())
-            .args(&[
-                "sed",
-                "-i",
-                "s/# %wheel ALL=(ALL) NOPASSWD: ALL/aur ALL=(ALL) NOPASSWD: ALL/g",
-            ])
-            .arg("/etc/sudoers")
-            .run()
-            .context("Failed to modify sudoers file for AUR packages")?;
+    info!("Installing AUR packages");
 
-        arch_chroot
-            .execute()
-            .arg(mount_point.path())
-            .args(&["sudo", "-u", "aur"])
-            .arg("git")
-            .arg("clone")
-            .arg(format!(
-                "https://aur.archlinux.org/{}.git",
+    arch_chroot
+        .execute()
+        .arg(mount_point.path())
+        .args(&["useradd", "-m", "aur"])
+        .run()
+        .context("Failed to create temporary user to install AUR packages")?;
+
+    let aur_sudoers = mount_point.path().join("etc/sudoers.d/aur");
+    fs::write(&aur_sudoers, "aur ALL=(ALL) NOPASSWD: ALL")
+        .context("Failed to modify sudoers file for AUR packages")?;
+
+    arch_chroot
+        .execute()
+        .arg(mount_point.path())
+        .args(&["sudo", "-u", "aur"])
+        .arg("git")
+        .arg("clone")
+        .arg(format!(
+            "https://aur.archlinux.org/{}.git",
+            &command.aur_helper.package_name
+        ))
+        .arg(format!("/home/aur/{}", &command.aur_helper.name))
+        .run()
+        .context("Failed to clone AUR helper package")?;
+
+    arch_chroot
+        .execute()
+        .arg(mount_point.path())
+        .args(&[
+            "bash",
+            "-c",
+            &format!(
+                "cd /home/aur/{} && sudo -u aur makepkg -s -i --noconfirm",
                 &command.aur_helper.name
-            ))
-            .arg(format!("/home/aur/{}", &command.aur_helper.name))
-            .run()
-            .context("Failed to clone AUR helper package")?;
+            ),
+        ])
+        .run()
+        .context("Failed to build AUR helper")?;
 
-        arch_chroot
-            .execute()
-            .arg(mount_point.path())
-            .args(&[
-                "bash",
-                "-c",
-                &format!(
-                    "cd /home/aur/{} && sudo -u aur makepkg -s -i --noconfirm",
-                    &command.aur_helper.name
-                ),
-            ])
-            .run()
-            .context("Failed to build AUR helper")?;
+    arch_chroot
+        .execute()
+        .arg(mount_point.path())
+        .args(&["sudo", "-u", "aur"])
+        .args(&command.aur_helper.install_command)
+        .args(aur_pacakges)
+        .run()
+        .context("Failed to install AUR packages")?;
 
-        arch_chroot
-            .execute()
-            .arg(mount_point.path())
-            .args(&["sudo", "-u", "aur"])
-            .args(&command.aur_helper.install_command)
-            .args(presets.aur_packages)
-            .args(&command.aur_packages)
-            .run()
-            .context("Failed to install AUR packages")?;
+    // Clean up aur user:
+    arch_chroot
+        .execute()
+        .arg(mount_point.path())
+        .args(&["userdel", "-r", "aur"])
+        .run()
+        .context("Failed to delete temporary aur user")?;
 
-        // Clean up aur user:
-        arch_chroot
-            .execute()
-            .arg(mount_point.path())
-            .args(&["userdel", "-r", "aur"])
-            .run()
-            .context("Failed to delete temporary aur user")?;
+    fs::remove_file(&aur_sudoers).context("Cannot delete the AUR sudoers temporary file")?;
 
-        arch_chroot
-            .execute()
-            .arg(mount_point.path())
-            .args(&[
-                "sed",
-                "-i",
-                "s/aur ALL=(ALL) NOPASSWD: ALL/# %wheel ALL=(ALL) NOPASSWD: ALL/g",
-            ])
-            .arg("/etc/sudoers")
-            .run()
-            .context("Failed to undo sudoers changes")?;
-    }
     if !presets.scripts.is_empty() {
         info!("Running custom scripts");
     }
@@ -387,7 +405,7 @@ fn create(command: args::CreateCommand) -> anyhow::Result<()> {
                 ),
             )
             .run()
-            .context("Failed running preset script")?;
+            .with_context(|| format!("Failed running preset script:\n{}", script.script_text))?;
     }
 
     info!("Performing post installation tasks");
@@ -406,25 +424,6 @@ fn create(command: args::CreateCommand) -> anyhow::Result<()> {
     )
     .context("Failed to write to journald.conf")?;
 
-    info!("Setting locale");
-    fs::OpenOptions::new()
-        .append(true)
-        .write(true)
-        .open(mount_point.path().join("etc/locale.gen"))
-        .and_then(|mut locale_gen| locale_gen.write_all(b"en_US.UTF-8 UTF-8\n"))
-        .context("Failed to create locale.gen")?;
-    fs::write(
-        mount_point.path().join("etc/locale.conf"),
-        "LANG=en_US.UTF-8",
-    )
-    .context("Failed to write to locale.conf")?;
-    arch_chroot
-        .execute()
-        .arg(mount_point.path())
-        .arg("locale-gen")
-        .run()
-        .context("locale-gen failed")?;
-
     info!("Generating initramfs");
     fs::write(
         mount_point.path().join("etc/mkinitcpio.conf"),
@@ -472,6 +471,23 @@ fn create(command: args::CreateCommand) -> anyhow::Result<()> {
         .arg(format!("grub-install --target=i386-pc --boot-directory /boot {} && grub-install --target=x86_64-efi --efi-directory /boot --boot-directory /boot --removable &&  grub-mkconfig -o /boot/grub/grub.cfg", disk_path.display()))
         .run().context("Failed to install grub")?;
 
+    let bootloader = mount_point.path().join("boot/EFI/BOOT/BOOTX64.efi");
+    fs::rename(
+        &bootloader,
+        mount_point.path().join("boot/EFI/BOOT/grubx64.efi"),
+    )
+    .context("Cannot move out grub")?;
+    fs::copy(
+        mount_point.path().join("usr/share/shim-signed/mmx64.efi"),
+        mount_point.path().join("boot/EFI/BOOT/mmx64.efi"),
+    )
+    .context("Failed copying mmx64")?;
+    fs::copy(
+        mount_point.path().join("usr/share/shim-signed/shimx64.efi"),
+        bootloader,
+    )
+    .context("Failed copying shim")?;
+
     debug!(
         "GRUB configuration: {}",
         fs::read_to_string(mount_point.path().join("boot/grub/grub.cfg"))
diff --git a/src/presets.rs b/src/presets.rs
index c6d9851..ef7b064 100644
--- a/src/presets.rs
+++ b/src/presets.rs
@@ -33,7 +33,7 @@ fn visit_dirs(dir: &Path, filevec: &mut Vec<PathBuf>) -> Result<(), io::Error> {
 impl Preset {
     fn load(path: &Path) -> anyhow::Result<Self> {
         let data = fs::read_to_string(path).with_context(|| format!("{}", path.display()))?;
-        Ok(toml::from_str(&data).with_context(|| format!("{}", path.display()))?)
+        toml::from_str(&data).with_context(|| format!("{}", path.display()))
     }
 
     fn process(
@@ -41,7 +41,7 @@ impl Preset {
         packages: &mut HashSet<String>,
         scripts: &mut Vec<Script>,
         environment_variables: &mut HashSet<String>,
-        path: &PathBuf,
+        path: &Path,
         aur_packages: &mut HashSet<String>,
     ) -> anyhow::Result<()> {
         if let Some(preset_packages) = &self.packages {
@@ -111,7 +111,7 @@ impl PresetsCollection {
                 // Build vector of paths to files, then sort by path name
                 // Recursively load directories of preset files
                 let mut dir_paths: Vec<PathBuf> = Vec::new();
-                visit_dirs(&preset, &mut dir_paths)
+                visit_dirs(preset, &mut dir_paths)
                     .with_context(|| format!("{}", preset.display()))?;
 
                 // Order not guaranteed so we sort
@@ -128,11 +128,11 @@ impl PresetsCollection {
                     )?;
                 }
             } else {
-                Preset::load(&preset)?.process(
+                Preset::load(preset)?.process(
                     &mut packages,
                     &mut scripts,
                     &mut environment_variables,
-                    &preset,
+                    preset,
                     &mut aur_packages,
                 )?;
             }
@@ -151,8 +151,8 @@ impl PresetsCollection {
 
         Ok(Self {
             packages,
-            scripts,
             aur_packages,
+            scripts,
         })
     }
 }
diff --git a/src/storage/loop_device.rs b/src/storage/loop_device.rs
index 5fcd95e..d63cca2 100644
--- a/src/storage/loop_device.rs
+++ b/src/storage/loop_device.rs
@@ -30,7 +30,7 @@ impl LoopDevice {
         );
         info!("Mounted {} to {}", file.display(), path.display());
 
-        Ok(LoopDevice { path, losetup })
+        Ok(Self { path, losetup })
     }
 
     pub fn path(&self) -> &Path {
diff --git a/src/storage/removeable_devices.rs b/src/storage/removeable_devices.rs
index dc87f8a..c267688 100644
--- a/src/storage/removeable_devices.rs
+++ b/src/storage/removeable_devices.rs
@@ -68,7 +68,7 @@ pub fn get_storage_devices(allow_non_removable: bool) -> anyhow::Result<Vec<Devi
                     .context("Could not parse block size to unsigned integer (u128)")?
                     * 512,
             ),
-        })
+        });
     }
 
     Ok(result)
diff --git a/src/storage/storage_device.rs b/src/storage/storage_device.rs
index 010e120..a41085c 100644
--- a/src/storage/storage_device.rs
+++ b/src/storage/storage_device.rs
@@ -21,7 +21,7 @@ impl<'a> StorageDevice<'a> {
             .context("Error querying information about the block device")?;
         let device_name = path
             .file_name()
-            .and_then(|s| s.to_str())
+            .and_then(std::ffi::OsStr::to_str)
             .map(String::from)
             .ok_or_else(|| anyhow!("Invalid device name: {}", path.display()))?;
 
diff --git a/src/tool/mod.rs b/src/tool/mod.rs
index 3841cee..2828c6b 100644
--- a/src/tool/mod.rs
+++ b/src/tool/mod.rs
@@ -2,6 +2,7 @@ mod chroot;
 mod mount;
 mod qemu;
 
+use anyhow::Context;
 pub use chroot::chroot;
 pub use mount::mount;
 pub use qemu::qemu;
@@ -17,7 +18,9 @@ pub struct Tool {
 
 impl Tool {
     pub fn find(name: &'static str) -> anyhow::Result<Self> {
-        Ok(Self { exec: which(name)? })
+        Ok(Self {
+            exec: which(name).context(format!("Cannot find {}", name))?,
+        })
     }
 
     pub fn execute(&self) -> Command {
diff --git a/src/tool/mount.rs b/src/tool/mount.rs
index 678da0c..c26e7e6 100644
--- a/src/tool/mount.rs
+++ b/src/tool/mount.rs
@@ -20,7 +20,7 @@ pub fn mount<'a>(
 
     info!("Mounting filesystems to {}", mount_path.display());
     mount_stack
-        .mount(&root_filesystem, mount_path.into(), None)
+        .mount(root_filesystem, mount_path.into(), None)
         .with_context(|| format!("Error mounting filesystem to {}", mount_path.display()))?;
 
     let boot_point = mount_path.join("boot");
@@ -29,7 +29,7 @@ pub fn mount<'a>(
     }
 
     mount_stack
-        .mount(&boot_filesystem, boot_point, None)
+        .mount(boot_filesystem, boot_point, None)
         .context("Error mounting the boot point")?;
 
     Ok(mount_stack)