diff --git a/init.d/20_graphics b/init.d/20_graphics
index bf0719ca9e..ecfd423b4c 100644
--- a/init.d/20_graphics
+++ b/init.d/20_graphics
@@ -1,7 +1,5 @@
 scheme input inputd
 notify FRAMEBUFFER_ADDR=$ FRAMEBUFFER_VIRT=$ FRAMEBUFFER_WIDTH=$ FRAMEBUFFER_HEIGHT=$ FRAMEBUFFER_STRIDE=$ vesad
-unset FRAMEBUFFER_ADDR FRAMEBUFFER_VIRT FRAMEBUFFER_WIDTH FRAMEBUFFER_HEIGHT FRAMEBUFFER_STRIDE
-#TODO: unset FRAMEBUFFER1 and beyond?
 scheme fbbootlog fbbootlogd
 # Activate framebuffer log VT, which disables kernel graphical debug
 inputd -A 1
diff --git a/init.d/40_drivers b/init.d/40_drivers
index 4427519a94..82daf676c1 100644
--- a/init.d/40_drivers
+++ b/init.d/40_drivers
@@ -1,4 +1,3 @@
 notify ps2d
 notify RSDP_ADDR=$ RSDP_SIZE=$ hwd
-unset RSDP_ADDR RSDP_SIZE
 pcid-spawner --initfs
diff --git a/init.d/50_rootfs b/init.d/50_rootfs
index 07baec4e43..ece2c67124 100644
--- a/init.d/50_rootfs
+++ b/init.d/50_rootfs
@@ -1,2 +1 @@
 REDOXFS_PASSWORD_ADDR=$ REDOXFS_PASSWORD_SIZE=$ redoxfs --uuid $REDOXFS_UUID file $REDOXFS_BLOCK
-unset REDOXFS_UUID REDOXFS_BLOCK REDOXFS_PASSWORD_ADDR REDOXFS_PASSWORD_SIZE
diff --git a/init/src/main.rs b/init/src/main.rs
index de8a81bc67..27afab8cad 100644
--- a/init/src/main.rs
+++ b/init/src/main.rs
@@ -1,4 +1,6 @@
+use std::collections::BTreeMap;
 use std::env;
+use std::ffi::OsString;
 use std::io::Result;
 use std::path::Path;
 
@@ -23,6 +25,7 @@ fn switch_stdio(stdio: &str) -> Result<()> {
 struct InitConfig {
     log_debug: bool,
     skip_cmd: Vec<String>,
+    envs: BTreeMap<String, OsString>,
 }
 
 impl InitConfig {
@@ -37,15 +40,20 @@ impl InitConfig {
         Self {
             log_debug,
             skip_cmd,
+            envs: BTreeMap::from([("RUST_BACKTRACE".to_owned(), "1".into())]),
         }
     }
 }
 
-fn switch_root(prefix: &Path, etcdir: &Path, config: &InitConfig) {
-    unsafe {
-        env::set_var("PATH", prefix.join("bin"));
-        env::set_var("LD_LIBRARY_PATH", prefix.join("lib"));
-    }
+fn switch_root(prefix: &Path, etcdir: &Path, config: &mut InitConfig) {
+    config
+        .envs
+        .insert("PATH".to_owned(), prefix.join("bin").into_os_string());
+    config.envs.insert(
+        "LD_LIBRARY_PATH".to_owned(),
+        prefix.join("lib").into_os_string(),
+    );
+
     let entries = match config::config_for_dirs(&[
         prefix.join("lib").join("init.d"),
         etcdir.join("init.d"),
@@ -64,7 +72,7 @@ fn switch_root(prefix: &Path, etcdir: &Path, config: &InitConfig) {
     }
 }
 
-fn run(file: &Path, config: &InitConfig) -> Result<()> {
+fn run(file: &Path, config: &mut InitConfig) -> Result<()> {
     let (script, errors) = script::Script::from_file(file)?;
 
     for error in errors {
@@ -81,7 +89,7 @@ fn run(file: &Path, config: &InitConfig) -> Result<()> {
     Ok(())
 }
 
-fn run_command(cmd: Command, config: &InitConfig) {
+fn run_command(cmd: Command, config: &mut InitConfig) {
     match cmd {
         Command::Nothing => {}
         Command::Echo(text) => println!("{text}"),
@@ -105,7 +113,7 @@ fn run_command(cmd: Command, config: &InitConfig) {
                 return;
             }
 
-            let mut command = cmd.into_command();
+            let mut command = cmd.into_command(&config.envs);
 
             match command.spawn() {
                 Ok(_child) => {}
@@ -118,7 +126,7 @@ fn run_command(cmd: Command, config: &InitConfig) {
                 return;
             }
 
-            let command = cmd.into_command();
+            let command = cmd.into_command(&config.envs);
 
             daemon::Daemon::spawn(command);
         }
@@ -128,7 +136,7 @@ fn run_command(cmd: Command, config: &InitConfig) {
                 return;
             }
 
-            let command = cmd.into_command();
+            let command = cmd.into_command(&config.envs);
 
             daemon::SchemeDaemon::spawn(command, &scheme);
         }
@@ -138,7 +146,7 @@ fn run_command(cmd: Command, config: &InitConfig) {
                 return;
             }
 
-            let mut command = cmd.into_command();
+            let mut command = cmd.into_command(&config.envs);
 
             let mut child = match command.spawn() {
                 Ok(child) => child,
@@ -162,11 +170,11 @@ fn run_command(cmd: Command, config: &InitConfig) {
 }
 
 fn main() {
-    let init_config = InitConfig::new();
+    let mut init_config = InitConfig::new();
     switch_root(
         Path::new("/scheme/initfs"),
         Path::new("/scheme/initfs/etc"),
-        &init_config,
+        &mut init_config,
     );
 
     libredox::call::setrens(0, 0).expect("init: failed to enter null namespace");
diff --git a/init/src/script.rs b/init/src/script.rs
index ad03a289bc..c22ee99b19 100644
--- a/init/src/script.rs
+++ b/init/src/script.rs
@@ -1,3 +1,5 @@
+use std::collections::BTreeMap;
+use std::ffi::OsString;
 use std::path::{Path, PathBuf};
 use std::{env, fs, io, iter, process};
 
@@ -149,9 +151,10 @@ impl Process {
         }
     }
 
-    pub fn into_command(self) -> process::Command {
+    pub fn into_command(self, base_envs: &BTreeMap<String, OsString>) -> process::Command {
         let mut command = process::Command::new(self.cmd);
-        command.args(self.args).envs(self.envs);
+        command.args(self.args);
+        command.env_clear().envs(base_envs).envs(self.envs);
         command
     }
 }