diff --git a/byterun/include/parser.hpp b/byterun/include/parser.hpp
index 3f63a2ca9..832b2f53e 100644
--- a/byterun/include/parser.hpp
+++ b/byterun/include/parser.hpp
@@ -8,6 +8,9 @@ extern "C" {
 #include "utils.h"
 }
 
+static const constexpr char *GLOBAL_VAR_TAG = "global_";
+static const size_t GLOBAL_VAR_TAG_LEN = strlen(GLOBAL_VAR_TAG);
+
 enum class Cmd : int8_t {
   BINOP,
   CONST,
diff --git a/byterun/include/stack.h b/byterun/include/stack.h
index 8412790ac..16f21268d 100644
--- a/byterun/include/stack.h
+++ b/byterun/include/stack.h
@@ -48,10 +48,6 @@ static inline void **s_peek() {
     s_failure(&s, "peek: empty function stack");
   }
 #endif
-#ifdef DEBUG_VERSION
-  printf("--> peek\n");
-#endif
-
   return (void **)__gc_stack_top;
 }
 
@@ -62,9 +58,6 @@ static inline void s_push(void *val) {
   if ((void **)__gc_stack_top == s.stack) {
     s_failure(&s, "stack overflow");
   }
-#endif
-#ifdef DEBUG_VERSION
-  printf("--> push\n");
 #endif
   __gc_stack_top -= sizeof(void *);
   *(void **)__gc_stack_top = val;
@@ -79,9 +72,6 @@ static inline void s_pushn_nil(size_t n) {
   if ((void **)__gc_stack_top + (aint)n - 1 <= s.stack) {
     s_failure(&s, "pushn: stack overflow");
   }
-#endif
-#ifdef DEBUG_VERSION
-  printf("--> push %zu\n", n);
 #endif
   for (size_t i = 0; i < n; ++i) {
     __gc_stack_top -= sizeof(void *);
@@ -97,9 +87,6 @@ static inline void *s_pop() {
   if (s.fp != NULL && (void **)__gc_stack_top == f_locals(s.fp)) {
     s_failure(&s, "pop: empty function stack");
   }
-#endif
-#ifdef DEBUG_VERSION
-  printf("--> pop\n");
 #endif
   void *value = *(void **)__gc_stack_top;
   __gc_stack_top += sizeof(void *);
@@ -116,9 +103,6 @@ static inline void s_popn(size_t n) {
   if (s.fp != NULL && (void **)__gc_stack_top + (aint)n - 1 >= f_locals(s.fp)) {
     s_failure(&s, "popn: empty function stack");
   }
-#endif
-#ifdef DEBUG_VERSION
-  printf("--> popn %zu\n", n);
 #endif
   __gc_stack_top += n * sizeof(void *);
 }
@@ -180,11 +164,6 @@ static inline void s_rotate_n(size_t n) {
 // location before / after new frame added
 static inline void s_enter_f(char *rp, bool is_closure_call, auint args_sz,
                              auint locals_sz) {
-#ifdef DEBUG_VERSION
-  printf("-> %i args sz\n", args_sz);
-  printf("-> %i locals sz\n", locals_sz);
-#endif
-
   // check that params count is valid
   if ((void **)__gc_stack_top + (aint)args_sz - (is_closure_call ? 0 : 1) >=
       s_top()) {
@@ -232,15 +211,9 @@ static inline void s_exit_f() {
   // drop stack entities, locals, frame
   size_t to_pop = f_args(s.fp) - (void **)__gc_stack_top;
   s.fp = (struct Frame *)f_prev_fp(&frame);
-#ifdef DEBUG_VERSION
-  printf("-> %zu to pop\n", to_pop);
-#endif
   s_popn(to_pop);
 
   // drop args
-#ifdef DEBUG_VERSION
-  printf("-> + %zu to pop\n", f_args_sz(&frame));
-#endif
   s_popn(f_args_sz(&frame));
 
   if (frame.closure) {
@@ -321,9 +294,6 @@ static inline void **var_by_category(enum VarCategory category, size_t id) {
     }
     data *d = TO_DATA(s.fp->closure);
     int count = get_len(d) - 1;
-#ifdef DEBUG_VERSION
-    printf("id is %i, count is %i\n", id, count);
-#endif
     if ((int64_t)id >= count) {
       s_failure(&s,
                 "can't read arguments: too big id"); //, %i >= %ul", id, count);
diff --git a/byterun/include/utils.h b/byterun/include/utils.h
index 4d26b8527..e0c886a9d 100644
--- a/byterun/include/utils.h
+++ b/byterun/include/utils.h
@@ -54,6 +54,12 @@ static inline size_t get_public_name_offset_unsafe(const Bytefile *bf,
   return bf->public_ptr[i * 2];
 }
 
+/* Sets a name offset for a public symbol */
+static inline void set_public_name_offset_unsafe(size_t offset,
+                                                 const Bytefile *bf, size_t i) {
+  bf->public_ptr[i * 2] = offset;
+}
+
 /* Gets a name for a public symbol */
 static inline const char *get_public_name_unsafe(const Bytefile *bf, size_t i) {
   return get_string_unsafe(bf, get_public_name_offset_unsafe(bf, i));
@@ -64,6 +70,12 @@ static inline size_t get_public_offset_unsafe(const Bytefile *bf, size_t i) {
   return bf->public_ptr[i * 2 + 1];
 }
 
+/* Sets an offset for a publie symbol */
+static inline void set_public_offset_unsafe(size_t offset, const Bytefile *bf,
+                                            size_t i) {
+  bf->public_ptr[i * 2 + 1] = offset;
+}
+
 // read from ip
 
 static inline void ip_write_int_unsafe(char *ip, int32_t x) {
diff --git a/byterun/src/analyzer.cpp b/byterun/src/analyzer.cpp
index 4272d4c46..ec742f4d0 100644
--- a/byterun/src/analyzer.cpp
+++ b/byterun/src/analyzer.cpp
@@ -93,7 +93,10 @@ void analyze(Bytefile *bf, std::vector<size_t> &&add_publics) {
   // add publics
   to_visit_func.reserve(bf->public_symbols_number + to_visit_func.size());
   for (size_t i = 0; i < bf->public_symbols_number; ++i) {
-    func_to_visit_push(get_public_offset_safe(bf, i));
+    const char *name = get_public_name_unsafe(bf, i);
+    if (memcmp(name, GLOBAL_VAR_TAG, GLOBAL_VAR_TAG_LEN) != 0) {
+      func_to_visit_push(get_public_offset_safe(bf, i));
+    }
   }
 
   if (to_visit_func.size() == 0) {
diff --git a/byterun/src/cli.cpp b/byterun/src/cli.cpp
index 0ae8fa980..75f48b8f6 100644
--- a/byterun/src/cli.cpp
+++ b/byterun/src/cli.cpp
@@ -41,30 +41,13 @@ int main(int argc, char **argv) {
     failure("no file name provided");
   }
 
-#ifdef DEBUG_VERSION
-  std::cout << "- read code file" << std::endl;
-#endif
-
   Bytefile *f = read_file(argv[2]);
   if (do_print) {
-#ifdef DEBUG_VERSION
-    std::cout << "- print code file" << std::endl;
-#endif
-
     print_file(*f, std::cout);
   }
   if (do_verification || do_interpretation) {
-#ifdef DEBUG_VERSION
-    std::cout << "- init stack" << std::endl;
-#endif
-
     size_t stack[STACK_SIZE];
     run_init(stack);
-
-#ifdef DEBUG_VERSION
-    std::cout << "- run with imports" << std::endl;
-#endif
-
     f = run_with_imports(f, argc - 2, argv + 2, do_verification);
   }
 
diff --git a/byterun/src/interpreter.c b/byterun/src/interpreter.c
index b2ce3d7cb..2375c20cf 100644
--- a/byterun/src/interpreter.c
+++ b/byterun/src/interpreter.c
@@ -74,18 +74,9 @@ void set_argc_argv(int argc, char **argv) {
     s_push(args_array);
     // NOTE: V,sysargs from Std
     *var_by_category(VAR_GLOBAL, 0) = args_array;
-
-#ifdef DEBUG_VERSION
-  print_stack(&s);
-  printf("- state init done\n");
-#endif
 }
 
 static inline void call_Bsexp(const char* name, size_t args_count) {
-#ifdef DEBUG_VERSION
-    printf("tag hash is %i, n is %i\n", UNBOX(LtagHash((char *)name)),
-           args_count);
-#endif
     s_push((void *)LtagHash((char *)name));
     s_rotate_n(args_count + 1);
 
@@ -106,9 +97,6 @@ static inline void call_Barray(size_t elem_count) {
 }
 
 void call_builtin(uint builtin_id, uint args_count) {
-#ifdef DEBUG_VERSION
-  printf("builtin id: %zu\n", builtin_id);
-#endif
 #ifndef WITH_CHECK
     if (builtin_id >= BUILTIN_NONE) {
       s_failure(&s, "invalid builtin");
@@ -123,10 +111,6 @@ void call_builtin(uint builtin_id, uint args_count) {
 }
 
 void run_main(Bytefile* bf, int argc, char **argv) {
-#ifdef DEBUG_VERSION
-  printf("--- init state ---\n");
-#endif
-
   prepare_state(bf, &s);
 
   void *buffer[BUFFER_SIZE];
@@ -438,12 +422,6 @@ void run_main(Bytefile* bf, int argc, char **argv) {
       case CMD_CTRL_TAG: { // TAG %s %d
         const char *name = ip_read_string(&s.ip);
         aint args_count = ip_read_int(&s.ip);
-
-#ifdef DEBUG_VERSION
-        printf("tag hash is %i, n is %i, peek is %i, unboxed: %li\n",
-               UNBOX(LtagHash((char *)name)), args_count, s_peek(&s), UNBOXED(s_peek(&s)));
-#endif
-
         s_push_i(Btag(s_pop(), LtagHash((char *)name), BOX(args_count)));
         break;
       }
diff --git a/byterun/src/module_manager.cpp b/byterun/src/module_manager.cpp
index 0ca0096da..8abbe8da6 100644
--- a/byterun/src/module_manager.cpp
+++ b/byterun/src/module_manager.cpp
@@ -1,5 +1,4 @@
 #include <cstring>
-#include <iostream>
 extern "C" {
 #include "interpreter.h"
 #include "module_manager.h"
@@ -17,9 +16,6 @@ extern "C" {
 #include <unordered_map>
 #include <vector>
 
-static const constexpr char *GLOBAL_VAR_TAG = "global_";
-static const size_t GLOBAL_VAR_TAG_LEN = std::strlen(GLOBAL_VAR_TAG);
-
 template <size_t N, bool return_value, typename... Args>
   requires(N == 0)
 void call_func(void (*f)(), size_t n, Args... args) {
@@ -65,6 +61,16 @@ struct Offsets {
 };
 
 void rewrite_code_with_offsets(Bytefile *bytefile, const Offsets &offsets) {
+  // rewrite publics
+  for (size_t i = 0; i < bytefile->public_symbols_number; ++i) {
+    set_public_name_offset_unsafe(get_public_name_offset_unsafe(bytefile, i) +
+                                      offsets.strings,
+                                  bytefile, i);
+    set_public_offset_unsafe(
+        get_public_offset_unsafe(bytefile, i) + offsets.code, bytefile, i);
+  }
+
+  // rewrite code
   char *ip = bytefile->code_ptr;
   while (ip - bytefile->code_ptr < bytefile->code_size) {
     char *instr_ip = ip;
@@ -143,10 +149,8 @@ void print_subst_to_bytes(BuiltinSubst subst, char **loc) {
 
 using BuiltinSubstMap = std::map<BuiltinSubst,
                                  /*generated builtin offset*/ size_t>;
-// std::vector<size_t> /*subst offsets*/>;
 
-// TODO: shared iteration over substs in functions
-void add_subst_builtin_offsets(BuiltinSubstMap &subst_map, size_t code_offset,
+void add_subst_builtin_offsets(BuiltinSubstMap &subst_map,
                                const Bytefile *bytefile) {
   for (size_t i = 0; i < bytefile->substs_area_size; ++i) {
     if (i + sizeof(uint32_t) >= bytefile->substs_area_size) {
@@ -173,7 +177,7 @@ void add_subst_builtin_offsets(BuiltinSubstMap &subst_map, size_t code_offset,
       char *ip = bytefile->code_ptr + offset;
       ip_read_int_unsafe(&ip);                       // read ptr placeholder
       uint32_t args_count = ip_read_int_unsafe(&ip); // read args count
-      subst_map[{builtin, args_count}] = 0; // .push_back(offset + code_offset);
+      subst_map[{builtin, args_count}] = 0;
     }
   }
 }
@@ -237,20 +241,42 @@ void subst_in_code(Bytefile *bytefile,
   }
 }
 
+Offsets initial_offsets() {
+  return {.strings = 0,
+          .globals = 1, // NOTE: V,sysargs from, Std
+          .code = 0,
+          .publics_num = 0};
+}
+
 Offsets calc_merge_sizes(const std::vector<Bytefile *> &bytefiles) {
-  Offsets sizes{.strings = 0,
-                .globals = 1, // NOTE: V,sysargs from, Std
-                .code = 0,
-                .publics_num = 0};
+  Offsets sizes = initial_offsets();
   for (size_t i = 0; i < bytefiles.size(); ++i) {
     sizes.strings += bytefiles[i]->stringtab_size;
     sizes.globals += bytefiles[i]->global_area_size;
     sizes.code += bytefiles[i]->code_size;
-    // sizes.publics_num += bytefiles[i]->public_symbols_number;
+    sizes.publics_num += bytefiles[i]->public_symbols_number;
   }
   return sizes;
 }
 
+void init_result_bytefile(Bytefile *result, const Offsets &sizes) {
+  result->code_size = sizes.code;
+  result->stringtab_size = sizes.strings;
+  result->global_area_size = sizes.globals;
+  result->substs_area_size = 0;
+  result->imports_number = 0;
+  result->public_symbols_number = sizes.publics_num;
+
+  result->main_offset = 0;
+  result->public_ptr = (int *)result->buffer;
+  result->string_ptr =
+      (char *)result->public_ptr + calc_publics_size(sizes.publics_num);
+  result->code_ptr = result->string_ptr + result->stringtab_size;
+  result->imports_ptr = NULL;
+  result->global_ptr = NULL;
+  result->substs_ptr = NULL;
+}
+
 struct MergeResult {
   Bytefile *bf;
   std::vector<size_t> main_offsets;
@@ -262,12 +288,8 @@ MergeResult merge_files(std::vector<Bytefile *> &&bytefiles) {
 
   // find all builtin variations ad extract them
   BuiltinSubstMap builtins_map;
-  {
-    size_t code_offset = 0;
-    for (size_t i = 0; i < bytefiles.size(); ++i) {
-      add_subst_builtin_offsets(builtins_map, code_offset, bytefiles[i]);
-      code_offset += bytefiles[i]->code_size;
-    }
+  for (const auto &bytefile : bytefiles) {
+    add_subst_builtin_offsets(builtins_map, bytefile);
   }
   auto [builtins_code, builtins_code_size] =
       gen_builtins(sizes.code, builtins_map);
@@ -275,17 +297,15 @@ MergeResult merge_files(std::vector<Bytefile *> &&bytefiles) {
 
   Bytefile *result =
       (Bytefile *)malloc(sizeof(Bytefile) + sizes.strings + sizes.code +
-                         public_symbols_size); // globals are on the stack
+                         public_symbols_size); // NOTE: globals are on the stack
 
   // collect publics
-  // TODO: add publics + updat name offsets too ?())
   std::unordered_map<std::string, size_t> publics;
   std::vector<size_t> main_offsets;
-
-  // NOTE: V,sysargs from, Std
-  publics.insert({"global_sysargs", 0});
-
   {
+    // NOTE: V,sysargs from Std
+    publics.insert({"global_sysargs", 0});
+
     size_t code_offset = 0;
     size_t globals_offset = 1; // NOTE: V,sysargs from, Std
     for (size_t i = 0; i < bytefiles.size(); ++i) {
@@ -310,27 +330,10 @@ MergeResult merge_files(std::vector<Bytefile *> &&bytefiles) {
   }
 
   // init result
-  result->code_size = sizes.code;
-  result->stringtab_size = sizes.strings;
-  result->global_area_size = sizes.globals;
-  result->substs_area_size = 0;
-  result->imports_number = 0;
-  result->public_symbols_number =
-      0; // sizes.publics_num; // TODO: correctly set and update publics
-
-  result->main_offset = 0; // TODO: save al main offsets in some way (?)
-  result->public_ptr = (int *)result->buffer;
-  result->string_ptr = (char *)result->public_ptr + public_symbols_size;
-  result->code_ptr = result->string_ptr + result->stringtab_size;
-  result->imports_ptr = NULL;
-  result->global_ptr = NULL;
-  result->substs_ptr = NULL;
+  init_result_bytefile(result, sizes);
 
   // update & merge code segments
-  Offsets offsets{.strings = 0,
-                  .globals = 1, // NOTE: V,sysargs from, Std
-                  .code = 0,
-                  .publics_num = 0};
+  Offsets offsets = initial_offsets();
   for (size_t i = 0; i < bytefiles.size(); ++i) {
     rewrite_code_with_offsets(bytefiles[i], offsets);
     subst_in_code(bytefiles[i], publics, builtins_map);
@@ -342,18 +345,15 @@ MergeResult merge_files(std::vector<Bytefile *> &&bytefiles) {
            bytefiles[i]->stringtab_size);
     memcpy(result->code_ptr + offsets.code, bytefiles[i]->code_ptr,
            bytefiles[i]->code_size);
-    // memcpy((char *)result->public_ptr + publics_offset,
-    //        (char *)bytefiles[i]->public_ptr,
-    //        calc_publics_size(
-    //            bytefiles[i]->public_symbols_number)); // TODO: recalc
-    //            publics:
-    //                                                   // offsets, strings
+    memcpy((char *)result->public_ptr + publics_offset,
+           (char *)bytefiles[i]->public_ptr,
+           calc_publics_size(bytefiles[i]->public_symbols_number));
 
     // update offsets
     offsets.strings += bytefiles[i]->stringtab_size;
     offsets.globals += bytefiles[i]->global_area_size;
     offsets.code += bytefiles[i]->code_size;
-    // offsets.publics_num += bytefiles[i]->public_symbols_number;
+    offsets.publics_num += bytefiles[i]->public_symbols_number;
 
     free(bytefiles[i]);
   }
@@ -375,7 +375,7 @@ MergeResult merge_files(std::vector<Bytefile *> &&bytefiles) {
 
 // ---
 
-Bytefile *path_mod_load(const char *name, std::filesystem::path &&path) {
+Bytefile *path_mod_load(std::filesystem::path &&path) {
   return read_file(path.c_str());
 }
 
@@ -388,12 +388,12 @@ Bytefile *mod_load(const char *name) {
   std::string full_name = std::string{name} + ".bc";
 
   if (std::filesystem::exists(full_name)) {
-    return path_mod_load(name, full_name);
+    return path_mod_load(full_name);
   }
   for (const auto &dir_path : search_paths) {
     auto path = dir_path / full_name;
     if (std::filesystem::exists(path)) {
-      return path_mod_load(name, std::move(path));
+      return path_mod_load(std::move(path));
     }
   }
 
@@ -405,16 +405,10 @@ Bytefile *mod_load(const char *name) {
 void mod_load_rec(Bytefile *mod,
                   std::unordered_map<std::string, Bytefile *> &loaded,
                   std::vector<Bytefile *> &loaded_ord) {
-#ifdef DEBUG_VERSION
-  printf("- run mod rec, %i imports\n", mod->imports_number);
-#endif
   for (size_t i = 0; i < mod->imports_number; ++i) {
     const char *import_str = get_import_safe(mod, i);
     if (loaded.count(import_str) == 0 &&
         strcmp(import_str, "Std") != 0) { // not loaded
-#ifdef DEBUG_VERSION
-      printf("- mod load <%s>\n", import_str);
-#endif
       Bytefile *import_mod = mod_load(import_str);
       if (import_mod == NULL) {
         failure("module <%s> not found\n", import_str);
@@ -434,13 +428,7 @@ MergeResult load_with_imports(Bytefile *root, bool do_verification) {
   MergeResult result = merge_files(std::move(loaded_ord));
 
   if (do_verification) {
-#ifdef DEBUG_VERSION
-    printf("main offsets count: %zu\n", result.main_offsets.size());
-#endif
     analyze(result.bf, std::move(result.main_offsets));
-#ifdef DEBUG_VERSION
-    std::cout << "verification done" << std::endl;
-#endif
   }
   return result;
 }
@@ -540,9 +528,7 @@ BUILTIN id_by_builtin(const char *name) {
    special assemply functions in `printf.S`. We additionally pass them amount
    of arguments to unbox using register r11. */
 void run_stdlib_func(BUILTIN id, size_t args_count) {
-  // std::cout << "RUN BUILTIN: " << id << '\n'; // TODO: TMP
   void *ret = NULL;
-  // TODO: deal with right pointers, etc.
   switch (id) {
   case BUILTIN_Luppercase:
     ret = (void *)Luppercase(*s_nth(0));
diff --git a/byterun/src/types.c b/byterun/src/types.c
index 12d6bbedb..e2381ac11 100644
--- a/byterun/src/types.c
+++ b/byterun/src/types.c
@@ -31,7 +31,6 @@ void init_state(struct State* s, void** stack) {
   __gc_stack_top = __gc_stack_bottom;
 
 #ifdef DEBUG_VERSION
-  print_stack(s);
   printf("- state init done\n");
 #endif
 }
@@ -52,7 +51,6 @@ void prepare_state(Bytefile* bf, struct State* s) {
   s->instr_ip = s->ip;
 
 #ifdef DEBUG_VERSION
-  print_stack(s);
   printf("- mod state init done\n");
 #endif
 }
@@ -62,7 +60,6 @@ void push_globals(struct State *s) {
   s_pushn_nil(s->bf->global_area_size);
 
 #ifdef DEBUG_VERSION
-  print_stack(s);
   printf("- state globals init done\n");
 #endif
 }