diff --git a/building/main.cpp b/building/main.cpp
index 67ceaca..e3b5906 100644
--- a/building/main.cpp
+++ b/building/main.cpp
@@ -43,7 +43,6 @@ struct Libregexis024BuildSystem {
         std::vector<CTarget> my_targets;
         {
             std::vector<std::string> compilation_units_release = {
-                "libregexis024vm/utils.cpp",
                 "libregexis024vm/vm_errno.cpp",
                 "libregexis024vm/vm_opcodes_disassembly.cpp",
                 "libregexis024vm/libregexis024vm_interface.cpp",
@@ -67,6 +66,7 @@ struct Libregexis024BuildSystem {
                 "libregexis024fa/graph_to_bytecode/fa_compiler.cpp",
                 "libregexis024fa/graph_to_bytecode/core.cpp",
 
+                "libregexis024sol/utils.cpp",
                 "libregexis024sol/common_codesets.cpp",
                 "libregexis024sol/expr_compiler.cpp",
                 "libregexis024sol/square_bracket_expression.cpp",
diff --git a/src/debugging_regexis024/prettyprint/prettyprint_util.cpp b/src/debugging_regexis024/prettyprint/prettyprint_util.cpp
index eb04087..1a05846 100644
--- a/src/debugging_regexis024/prettyprint/prettyprint_util.cpp
+++ b/src/debugging_regexis024/prettyprint/prettyprint_util.cpp
@@ -1,6 +1,6 @@
 #include <debugging_regexis024/prettyprint/prettyprint_util.h>
 #include <functional>
-#include <libregexis024vm/utils.h>
+#include <libregexis024sol/utils.h>
 
 namespace regexis024 {
     static const char* ch_empty = "    ";
diff --git a/src/libregexis024fa/fa_first_stage_fix.cpp b/src/libregexis024fa/fa_first_stage_fix.cpp
index 4f1c235..e5d619e 100644
--- a/src/libregexis024fa/fa_first_stage_fix.cpp
+++ b/src/libregexis024fa/fa_first_stage_fix.cpp
@@ -1,12 +1,7 @@
 #include <libregexis024fa/fa_first_stage_fix.h>
 #include <libregexis024fa/misc_fa_funcs.h>
-#include <libregexis024vm/utils.h>
 #include <assert.h>
 
-// #ifdef LIBREGEXIS024_DEBUG
-// #include <debugging_regexis024/debug_through_graphviz.h>
-// #endif
-
 namespace regexis024 {
     REGEX_IS024_FA_FirstStageFixInfo first_stage_fix_fa(FA_Container& sourceFa, FA_Container& resultFa) {
         assert(sourceFa.start);
@@ -88,8 +83,6 @@ namespace regexis024 {
                 v_sete.node->search_mark = -1;
         }
 
-        // show_fa_with_sxiv_after_dot(sourceFa, {{}, {}}, {});
-
         {
             /* Now it's time to fill resultFa. Skipping all look one ahead's */
             auto skip_useless = [&](FA_Node* v) -> FA_Node* {
diff --git a/src/libregexis024fa/finite_automaton.cpp b/src/libregexis024fa/finite_automaton.cpp
index 4305102..10c7715 100644
--- a/src/libregexis024fa/finite_automaton.cpp
+++ b/src/libregexis024fa/finite_automaton.cpp
@@ -1,5 +1,4 @@
 #include <libregexis024fa/finite_automaton.h>
-#include <libregexis024vm/utils.h>
 #include <assert.h>
 
 namespace regexis024 {
diff --git a/src/libregexis024fa/graph_to_bytecode/filter.cpp b/src/libregexis024fa/graph_to_bytecode/filter.cpp
index 8051a4a..b3c17c2 100644
--- a/src/libregexis024fa/graph_to_bytecode/filter.cpp
+++ b/src/libregexis024fa/graph_to_bytecode/filter.cpp
@@ -56,7 +56,6 @@ namespace regexis024 {
         }
     }
 
-    // todo: use return value of this function
     bool write_filter(std::vector<uint8_t>& result, explicit_bookmarks& bookmark_manager,
         const std::vector<codeset_t>& crossroad_codesets, const std::vector<bookmark_id_t>& crossroad_marks)
     {
diff --git a/src/libregexis024fa/misc_fa_funcs.cpp b/src/libregexis024fa/misc_fa_funcs.cpp
index 9b2bcdc..caac23a 100644
--- a/src/libregexis024fa/misc_fa_funcs.cpp
+++ b/src/libregexis024fa/misc_fa_funcs.cpp
@@ -1,7 +1,6 @@
 #include <libregexis024fa/misc_fa_funcs.h>
 #include <libregexis024vm/vm_opcodes.h>
 #include <assert.h>
-#include <libregexis024vm/utils.h>
 
 namespace regexis024 {
     void reattach_fa_node_edge(FA_Node **old_node_ptr, FA_Node *new_node) {
diff --git a/src/libregexis024sol/command_expression.cpp b/src/libregexis024sol/command_expression.cpp
index 3afdfe6..76d5b96 100644
--- a/src/libregexis024sol/command_expression.cpp
+++ b/src/libregexis024sol/command_expression.cpp
@@ -1,6 +1,6 @@
 #include <libregexis024sol/special_terminals.h>
 
-#include <libregexis024vm/utils.h>
+#include <libregexis024sol/utils.h>
 #include <libregexis024sol/sol_misc_base.h>
 #include <assert.h>
 #include <memory>
diff --git a/src/libregexis024sol/expr_compiler.cpp b/src/libregexis024sol/expr_compiler.cpp
index 25ea0f6..0f296b2 100644
--- a/src/libregexis024sol/expr_compiler.cpp
+++ b/src/libregexis024sol/expr_compiler.cpp
@@ -1,6 +1,6 @@
 #include <libregexis024sol/expr_compiler.h>
 #include <libregexis024vm/vm_opcodes.h>
-#include <libregexis024vm/utils.h>
+#include <libregexis024sol/utils.h>
 #include <libregexis024fa/codeset.h>
 #include <libregexis024fa/finite_automaton.h>
 #include <libregexis024fa/fa_first_stage_fix.h>
diff --git a/src/libregexis024sol/expr_parse_functions/command_recognition.cpp b/src/libregexis024sol/expr_parse_functions/command_recognition.cpp
index 248b9ff..3755398 100644
--- a/src/libregexis024sol/expr_parse_functions/command_recognition.cpp
+++ b/src/libregexis024sol/expr_parse_functions/command_recognition.cpp
@@ -1,5 +1,5 @@
 #include <libregexis024sol/expr_parse_functions/command_recognition.h>
-#include <libregexis024vm/utils.h>
+#include <libregexis024sol/utils.h>
 #include <libregexis024sol/expr_compiler.h>
 #include <libregexis024sol/sol_misc_base.h>
 
diff --git a/src/libregexis024sol/sol_misc_base.cpp b/src/libregexis024sol/sol_misc_base.cpp
index abe2a1c..b0e85c4 100644
--- a/src/libregexis024sol/sol_misc_base.cpp
+++ b/src/libregexis024sol/sol_misc_base.cpp
@@ -1,5 +1,5 @@
 #include <libregexis024sol/sol_misc_base.h>
-#include <libregexis024vm/utils.h>
+#include <libregexis024sol/utils.h>
 
 namespace regexis024 {
     void report(REGEX_IS024_MeaningContext &ctx, const char *error) {
diff --git a/src/libregexis024vm/utils.cpp b/src/libregexis024sol/utils.cpp
similarity index 97%
rename from src/libregexis024vm/utils.cpp
rename to src/libregexis024sol/utils.cpp
index 79dde33..18121f3 100644
--- a/src/libregexis024vm/utils.cpp
+++ b/src/libregexis024sol/utils.cpp
@@ -1,4 +1,4 @@
-#include <libregexis024vm/utils.h>
+#include <libregexis024sol/utils.h>
 
 #include <string.h>
 #include <stdio.h>
diff --git a/src/libregexis024vm/utils.h b/src/libregexis024sol/utils.h
similarity index 94%
rename from src/libregexis024vm/utils.h
rename to src/libregexis024sol/utils.h
index dc683dc..c4db88b 100644
--- a/src/libregexis024vm/utils.h
+++ b/src/libregexis024sol/utils.h
@@ -4,7 +4,6 @@
 #include <stdint.h>
 #include <stdlib.h>
 
-// todo: move this file out from my eyes.
 namespace regexis024 {
     /* 1, 2, 3, 4 on success; -1 on error */
     int utf8_retrieve_size(char firstByte);
diff --git a/src/libregexis024test/byte_code_assembler.h b/src/libregexis024test/byte_code_assembler.h
index 4d9555e..3a72e4c 100644
--- a/src/libregexis024test/byte_code_assembler.h
+++ b/src/libregexis024test/byte_code_assembler.h
@@ -77,7 +77,7 @@ struct assembler_context{
     }
 };
 
-#define msh_put_instr(ename)          daCtx.put_byte(regex024_opcodes::ename);
+#define msh_put_instr(ename)          daCtx.put_byte(opcodes::ename);
 #define msh_put_sslot(ssid)           daCtx.put_doubleword(ssid);
 #define msh_put_track_arr_ind(i)      daCtx.put_word(i);
 #define msh_put_x(meth, x)            daCtx.meth(x);
@@ -121,9 +121,7 @@ struct assembler_context{
 #define i_PARAM_SELARR_LEN(tai)           msh_put_instr(PARAM_SELARR_LEN)       msh_put_track_arr_ind(tai)
 #define i_PARAM_COLSIFTFUNC_SET(bookmark) msh_put_instr(PARAM_COLSIFTFUNC_SET)  msh_bookmark_reference(bookmark)
 #define i_PARAM_COLSIFTFUNC_WIPE()        msh_put_instr(PARAM_COLSIFTFUNC_WIPE)
-#define i_MSG_MULTISTART_ALLOWED(is_allowed)    msh_put_instr(MSG_MULTISTART_ALLOWED)  daCtx.put_byte(is_allowed);
-#define i_MSG_FED_INPUT_EXTENDED(left, right, part)   msh_put_instr(MSG_FED_INPUT_EXTENDED) \
-                                        daCtx.put_byte(left);   daCtx.put_byte(right);  msh_put_sslot(part)
+
 #define i_DMOV_RABX_SELARR(tai)           msh_put_instr(DMOV_RABX_SELARR)       msh_put_track_arr_ind(tai)
 #define DDIST_RABX_SELARR(tai_beg, tai_end)    msh_put_instr(DDIST_RABX_SELARR) \
                                                     msh_put_track_arr_ind(tai_beg)  msh_put_track_arr_ind(tai_end)
diff --git a/src/libregexis024test/byte_code_disassembler.h b/src/libregexis024test/byte_code_disassembler.h
index c6cd226..ba71065 100644
--- a/src/libregexis024test/byte_code_disassembler.h
+++ b/src/libregexis024test/byte_code_disassembler.h
@@ -155,14 +155,6 @@ void print_disassembly(size_t prgSize, uint8_t* prg){
                     fph_register_landing(entry);
                 secPrint("PARAM_COLSIFTFUNC_SET $%s\n", get_bookmark_in_2phase(entry).c_str())
                 simpleDimple(PARAM_COLSIFTFUNC_WIPE)
-                instCase(MSG_MULTISTART_ALLOWED)
-                    uint8_t is_allowed = extract_b();
-                secPrint("MSG_MULTISTART_ALLOWED %hhu\n", is_allowed)
-                instCase(MSG_FED_INPUT_EXTENDED)
-                    uint8_t left = extract_b();
-                    uint8_t right = extract_b();
-                    sslot_id_t part = extract_sslot_id();
-                secPrint("MSG_FED_INPUT_EXTENDED %hhu %hhu %u\n", left, right, part)
                 instCase(DMOV_RABX_SELARR)
                     tai_t i = extract_track_array_index();
                 secPrint("DMOV_RABX_SELARR %hu\n", i)
diff --git a/src/libregexis024tools/stringmatching.cpp b/src/libregexis024tools/stringmatching.cpp
index 0a5b648..f24fbee 100644
--- a/src/libregexis024tools/stringmatching.cpp
+++ b/src/libregexis024tools/stringmatching.cpp
@@ -2,7 +2,7 @@
 #include <libregexis024tools/stringmatching.h>
 #include <libregexis024sol/expr_compiler.h>
 #include <libregexis024vm/libregexis024vm_interface.h>
-#include <libregexis024vm/utils.h>
+#include <libregexis024sol/utils.h>
 #include <assert.h>
 
 // using namespace regexis024;
diff --git a/src/libregexis024vm/libregex024opcodes_stringification.cpp b/src/libregexis024vm/libregex024opcodes_stringification.cpp
index 455c968..b024d0f 100644
--- a/src/libregexis024vm/libregex024opcodes_stringification.cpp
+++ b/src/libregexis024vm/libregex024opcodes_stringification.cpp
@@ -1,5 +1,4 @@
 #include <libregexis024vm/vm_opcodes.h>
-#include <libregexis024vm/utils.h>
 
 namespace regexis024 {
     const char *opcode_to_str(opcode_t x) {
diff --git a/src/libregexis024vm/libregexis024vm.h b/src/libregexis024vm/libregexis024vm.h
index bf061bb..53df55e 100644
--- a/src/libregexis024vm/libregexis024vm.h
+++ b/src/libregexis024vm/libregexis024vm.h
@@ -11,7 +11,6 @@
 * Naming in this project is super inconsistent. I don't want it to trash your namespace */
 
 #include <libregexis024vm/vm_errno.h>
-#include <libregexis024vm/utils.h>
 #include <libregexis024vm/vm_opcodes_types.h>
 #include <stdlib.h>
 #include <stdint.h>