diff --git a/TODO.md b/TODO.md
deleted file mode 100644
index ffeff7f..0000000
--- a/TODO.md
+++ /dev/null
@@ -1,24 +0,0 @@
-- [ ] rename `AsInnerPtr::as_ptr` to `AsInnerPtr::as_mut_ptr`
-
-- [ ] add NixError::from_nonnull that replaces calls to NonNull::new(...).ok_or(...)
-- [ ] replace all `use nixide_sys as sys;` -> `use crate::sys;`
-- [ ] store NonNull pointers in structs!
-- [ ] improve documentation situation on context.rs
-
-- [ ] rename `as_ptr()` to `as_inner_ptr()` or `inner_ptr()`?
-- [ ] ^^^ this fn should be added to a trait (maybe just `trait NixStructWrapper : AsPtr { ... }`)
-- [ ] ^^^ also make `as_ptr()` public
-
-- [ ] add mutexs and make the library thread safe!!
-
-- [ ] grep all `self.inner.as_ptr()` calls and replace them with `self.as_ptr()`
-
-
-- [ ] `ErrorContext::peak` should return `Result<(), NixideError>` **not** `Option<NixideError>`
-- [ ] `self.expect_type` should instead be a macro to preserve the trace macro location
-
-- [ ] make `Value` an enum instead because like duhh
-
-- [ ] ensure we're always calling `ctx.peak()` unless it's ACTUALLY not necessary
-
-- [ ] replace *most* calls to `ErrorContext::peak()` with `ErrorContext::pop()`
diff --git a/nixide/src/errors/context.rs b/nixide/src/errors/context.rs
index 87d4b8e..0f53046 100644
--- a/nixide/src/errors/context.rs
+++ b/nixide/src/errors/context.rs
@@ -182,8 +182,6 @@ impl ErrorContext {
     /// of `nix_c_context` must be careful to check the `last_err_code` regularly.
     pub fn clear(&mut self) {
         unsafe {
-            // NOTE: previous nixops4 used the line: (maybe for compatability with old versions?)
-            // sys::nix_set_err_msg(self.inner.as_ptr(), sys::nix_err_NIX_OK, c"".as_ptr());
             sys::nix_clear_err(self.as_ptr());
         }
     }
@@ -351,7 +349,7 @@ impl ErrorContext {
 impl Drop for ErrorContext {
     fn drop(&mut self) {
         unsafe {
-            sys::nix_c_context_free(self.inner.as_ptr());
+            sys::nix_c_context_free(self.as_ptr());
         }
     }
 }
diff --git a/nixide/src/expr/evalstate.rs b/nixide/src/expr/evalstate.rs
index 304409a..1c6bb28 100644
--- a/nixide/src/expr/evalstate.rs
+++ b/nixide/src/expr/evalstate.rs
@@ -97,9 +97,8 @@ impl EvalState {
 
 impl Drop for EvalState {
     fn drop(&mut self) {
-        // SAFETY: We own the state and it's valid until drop
         unsafe {
-            sys::nix_state_free(self.inner.as_ptr());
+            sys::nix_state_free(self.as_ptr());
         }
     }
 }
diff --git a/nixide/src/expr/evalstatebuilder.rs b/nixide/src/expr/evalstatebuilder.rs
index 82908dc..c289fbd 100644
--- a/nixide/src/expr/evalstatebuilder.rs
+++ b/nixide/src/expr/evalstatebuilder.rs
@@ -77,9 +77,8 @@ impl EvalStateBuilder {
 
 impl Drop for EvalStateBuilder {
     fn drop(&mut self) {
-        // SAFETY: We own the builder and it's valid until drop
         unsafe {
-            sys::nix_eval_state_builder_free(self.inner.as_ptr());
+            sys::nix_eval_state_builder_free(self.as_ptr());
         }
     }
 }
diff --git a/nixide/src/store/mod.rs b/nixide/src/store/mod.rs
index 63f347c..420d807 100644
--- a/nixide/src/store/mod.rs
+++ b/nixide/src/store/mod.rs
@@ -129,7 +129,7 @@ impl Store {
 
                 sys::nix_store_realise(
                     ctx.as_ptr(),
-                    self.inner.as_ptr(),
+                    self.as_ptr(),
                     path.as_ptr(),
                     (*state).inner_ptr() as *mut c_void,
                     Some(callback),
@@ -173,7 +173,7 @@ impl Store {
             |callback, userdata: *mut __UserData, ctx: &ErrorContext| unsafe {
                 sys::nix_store_get_version(
                     ctx.as_ptr(),
-                    self.inner.as_ptr(),
+                    self.as_ptr(),
                     Some(callback),
                     userdata as *mut c_void,
                 )
@@ -187,7 +187,7 @@ impl Store {
             |callback, userdata: *mut __UserData, ctx: &ErrorContext| unsafe {
                 sys::nix_store_get_uri(
                     ctx.as_ptr(),
-                    self.inner.as_ptr(),
+                    self.as_ptr(),
                     Some(callback),
                     userdata as *mut c_void,
                 )
@@ -200,7 +200,7 @@ impl Store {
             |callback, userdata: *mut __UserData, ctx: &ErrorContext| unsafe {
                 sys::nix_store_get_storedir(
                     ctx.as_ptr(),
-                    self.inner.as_ptr(),
+                    self.as_ptr(),
                     Some(callback),
                     userdata as *mut c_void,
                 )
@@ -242,7 +242,7 @@ impl Store {
 impl Drop for Store {
     fn drop(&mut self) {
         unsafe {
-            sys::nix_store_free(self.inner.as_ptr());
+            sys::nix_store_free(self.as_ptr());
         }
     }
 }
diff --git a/nixide/src/store/path.rs b/nixide/src/store/path.rs
index e5894f3..d037c0e 100644
--- a/nixide/src/store/path.rs
+++ b/nixide/src/store/path.rs
@@ -71,7 +71,7 @@ impl StorePath {
     ///
     pub fn name(&self) -> NixideResult<String> {
         wrap::nix_string_callback!(|callback, userdata: *mut __UserData, _| unsafe {
-            sys::nix_store_path_name(self.inner.as_ptr(), Some(callback), userdata as *mut c_void);
+            sys::nix_store_path_name(self.as_ptr(), Some(callback), userdata as *mut c_void);
             // NOTE: nix_store_path_name doesn't return nix_err, so we force it to return successfully
             // XXX: NOTE: now `nix_string_callback` is a macro this isn't necessary
             // sys::nix_err_NIX_OK