diff --git a/f4pga/flows/common_modules/synth.py b/f4pga/flows/common_modules/synth.py
index d1fd86b..07ab3c1 100755
--- a/f4pga/flows/common_modules/synth.py
+++ b/f4pga/flows/common_modules/synth.py
@@ -23,7 +23,6 @@ from pathlib import Path
 from f4pga.flows.common import decompose_depname, get_verbosity_level, sub as common_sub
 from f4pga.flows.module import Module, ModuleContext
 from f4pga.wrappers.tcl import get_script_path as get_tcl_wrapper_path
-from f4pga.utils import split_inouts
 
 
 class SynthModule(Module):
@@ -52,19 +51,9 @@ class SynthModule(Module):
         return mapping
 
     def execute(self, ctx: ModuleContext):
-        # Setup environmental variables for YOSYS TCL scripts.
-        tcl_env = (
-            {
-                key: (" ".join(val) if type(val) is list else val)
-                for key, val in ctx.values.yosys_tcl_env.items()
-                if val is not None
-            }
-            if ctx.values.yosys_tcl_env
-            else {}
-        )
-
         yield f"Synthesizing sources{f': {ctx.takes.sources}...' if get_verbosity_level() >= 2 else f'...'}"
-        tcl = f'tcl {str(get_tcl_wrapper_path("synth"))}'
+
+        tcl = f"tcl {str(get_tcl_wrapper_path())}"
         verilog_files = []
         # Use append read_verilog commands to the scripts for more sophisticated
         # input if arguments are specified. Omit direct input throught `yosys` command.
@@ -74,30 +63,31 @@ class SynthModule(Module):
                 tcl = f"read_verilog {args_str} {vfile}; {tcl}"
         else:
             verilog_files = ctx.takes.sources
+
         # Set up environment for TCL weirdness
         env = environ.copy()
-        env.update(tcl_env)
+        env.update(
+            (
+                {
+                    key: (" ".join(val) if type(val) is list else val)
+                    for key, val in ctx.values.yosys_tcl_env.items()
+                    if val is not None
+                }
+                if ctx.values.yosys_tcl_env
+                else {}
+            )
+        )
+
         # Execute YOSYS command
         common_sub(
             *(["yosys", "-p", tcl] + (["-l", ctx.outputs.synth_log] if ctx.outputs.synth_log else []) + verilog_files),
             env=env,
         )
 
-        yield f"Splitting in/outs..."
-        split_inouts(ctx.outputs.json, ctx.outputs.synth_json)
-
         if not Path(ctx.produces.fasm_extra).is_file():
             with Path(ctx.produces.fasm_extra).open("w") as wfptr:
                 wfptr.write("")
 
-        yield f"Converting..."
-        # Set up environment for TCL weirdness
-        env = environ.copy()
-        env.update(tcl_env)
-        common_sub(
-            "yosys", "-p", f'read_json {ctx.outputs.synth_json}; tcl {str(get_tcl_wrapper_path("conv"))}', env=env
-        )
-
     def __init__(self, params):
         self.name = "synthesize"
         self.no_of_phases = 3
diff --git a/f4pga/flows/platforms.yml b/f4pga/flows/platforms.yml
index 1693385..4313795 100644
--- a/f4pga/flows/platforms.yml
+++ b/f4pga/flows/platforms.yml
@@ -231,6 +231,7 @@ ql-eos-s3:
         read_verilog_args: []
         yosys_tcl_env:
           OUT_JSON: '${:json}'
+          SYNTH_JSON: '${:synth_json}'
           OUT_SYNTH_V: '${:synth_v}'
           OUT_EBLIF: '${:eblif}'
           OUT_FASM_EXTRA: '${:fasm_extra}'
@@ -618,6 +619,7 @@ ql-k4n8_fast: &ql-k4n8
         yosys_tcl_env:
           TOP: '${top}'
           OUT_JSON: '${:json}'
+          SYNTH_JSON: '${:synth_json}'
           TECHMAP_PATH: '${shareDir}/techmaps/qlf_k4n8'
           OUT_SYNTH_V: '${:synth_v}'
           OUT_EBLIF: '${:eblif}'
diff --git a/f4pga/setup.py b/f4pga/setup.py
index 0a3ff03..61a286b 100644
--- a/f4pga/setup.py
+++ b/f4pga/setup.py
@@ -83,12 +83,12 @@ setuptools_setup(
         "f4pga.flows": [
             "*.yml",
         ],
-        "f4pga.wrappers.sh": ["xc7/*.f4pga.sh", "quicklogic/*.f4pga.sh"],
+        "f4pga.wrappers.sh": [
+            "xc7/*.f4pga.sh",
+            "quicklogic/*.f4pga.sh",
+        ],
         "f4pga.wrappers.tcl": [
-            "xc7/*.f4pga.tcl",
-            "eos-s3/*.f4pga.tcl",
-            "qlf_k4n8/*.f4pga.tcl",
-            "ice40/*.f4pga.tcl",
+            "*.f4pga.tcl",
         ],
     },
     classifiers=[],
diff --git a/f4pga/utils/__init__.py b/f4pga/utils/__init__.py
deleted file mode 100644
index 079d74d..0000000
--- a/f4pga/utils/__init__.py
+++ /dev/null
@@ -1,20 +0,0 @@
-#!/usr/bin/env python3
-# -*- coding: utf-8 -*-
-#
-# Copyright (C) 2022 F4PGA Authors
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#
-# SPDX-License-Identifier: Apache-2.0
-
-from f4pga.utils.split_inouts import main as split_inouts
diff --git a/f4pga/utils/split_inouts.py b/f4pga/utils/yosys_split_inouts.py
similarity index 100%
rename from f4pga/utils/split_inouts.py
rename to f4pga/utils/yosys_split_inouts.py
diff --git a/f4pga/wrappers/sh/quicklogic/synth.f4pga.sh b/f4pga/wrappers/sh/quicklogic/synth.f4pga.sh
index 55912d5..d5465f9 100755
--- a/f4pga/wrappers/sh/quicklogic/synth.f4pga.sh
+++ b/f4pga/wrappers/sh/quicklogic/synth.f4pga.sh
@@ -106,21 +106,11 @@ for arg in $@; do
 
 done
 
-if [ -z ${FAMILY} ]; then
-    echo "Please specify device family"
-    exit 1
-fi
-
-if [ ${#VERILOG_FILES[@]} -eq 0 ]; then
-  echo "Please provide at least one Verilog file"
-  exit 1
-fi
+if [ -z ${FAMILY} ]; then echo "Please specify device family"; exit 1; fi
+if [ ${#VERILOG_FILES[@]} -eq 0 ]; then echo "Please provide at least one Verilog file"; exit 1; fi
 
 PINMAPCSV="pinmap_${PART}.csv"
 
-SYNTH_TCL_PATH="$(python3 -m f4pga.wrappers.tcl synth "${FAMILY}")"
-CONV_TCL_PATH="$(python3 -m f4pga.wrappers.tcl conv "${FAMILY}")"
-
 export USE_ROI="FALSE"
 export OUT_JSON=$TOP.json
 export SYNTH_JSON=${TOP}_io.json
@@ -160,7 +150,7 @@ YOSYS_COMMANDS="${YOSYS_COMMANDS//$'\n'/'; '}"
 
 LOG=${TOP}_synth.log
 
-YOSYS_SCRIPT="tcl ${SYNTH_TCL_PATH}"
+YOSYS_SCRIPT="tcl $(python3 -m f4pga.wrappers.tcl "${FAMILY}")"
 
 for f in ${VERILOG_FILES[*]}; do
   YOSYS_SCRIPT="read_verilog ${f}; $YOSYS_SCRIPT"
@@ -171,5 +161,3 @@ if [ ! -z "${YOSYS_COMMANDS}" ]; then
 fi
 
 `which yosys` -p "${YOSYS_SCRIPT}" -l $LOG
-`which python3` -m f4pga.utils.split_inouts -i ${OUT_JSON} -o ${SYNTH_JSON}
-`which yosys` -p "read_json $SYNTH_JSON; tcl ${CONV_TCL_PATH}"
diff --git a/f4pga/wrappers/sh/xc7/synth.f4pga.sh b/f4pga/wrappers/sh/xc7/synth.f4pga.sh
index d5d043a..c5d0d9a 100755
--- a/f4pga/wrappers/sh/xc7/synth.f4pga.sh
+++ b/f4pga/wrappers/sh/xc7/synth.f4pga.sh
@@ -18,8 +18,6 @@
 
 set -e
 
-SYNTH_TCL_PATH="$(python3 -m f4pga.wrappers.tcl synth)"
-
 VERILOG_FILES=()
 XDC_FILES=()
 TOP=top
@@ -128,13 +126,8 @@ export PART_JSON=`realpath ${DATABASE_DIR}/$DEVICE/$PART/part.json`
 export OUT_FASM_EXTRA=${TOP}_fasm_extra.fasm
 export PYTHON3=${PYTHON3:-$(which python3)}
 
-LOG=${TOP}_synth.log
-
-if [ -z "$SURELOG_CMD" ]; then
-  yosys -p "tcl ${SYNTH_TCL_PATH}" -l $LOG ${VERILOG_FILES[*]}
-else
-  yosys -p "plugin -i uhdm" -p "read_verilog_with_uhdm ${SURELOG_CMD[*]} ${VERILOG_FILES[*]}" -p "tcl ${SYNTH_TCL_PATH}" -l $LOG
+yosys_read_cmds="read_verilog"
+if [ -n "$SURELOG_CMD" ]; then
+  yosys_read_cmds="plugin -i uhdm; read_verilog_with_uhdm ${SURELOG_CMD[*]}"
 fi
-
-python3 -m f4pga.utils.split_inouts -i ${OUT_JSON} -o ${SYNTH_JSON}
-yosys -p "read_json $SYNTH_JSON; tcl $(python3 -m f4pga.wrappers.tcl conv)"
+yosys -p "$yosys_read_cmds ${VERILOG_FILES[*]}; tcl $(python3 -m f4pga.wrappers.tcl)" -l "${TOP}_synth.log"
diff --git a/f4pga/wrappers/tcl/__init__.py b/f4pga/wrappers/tcl/__init__.py
index c333e5c..7b73c5c 100644
--- a/f4pga/wrappers/tcl/__init__.py
+++ b/f4pga/wrappers/tcl/__init__.py
@@ -28,7 +28,7 @@ ROOT = Path(__file__).resolve().parent
 ARCHS = {"xc7": ["artix7", "artix7_100t", "artix7_200t", "zynq7", "zynq7_z020", "spartan7"], "eos-s3": ["ql-s3", "pp3"]}
 
 
-def get_script_path(arg, arch=None):
+def get_script_path(arch=None):
     if arch is None:
         arch = FPGA_FAM
     for key, val in ARCHS.items():
@@ -37,6 +37,4 @@ def get_script_path(arg, arch=None):
             break
     if arch not in ["xc7", "eos-s3", "qlf_k4n8", "ice40"]:
         raise (Exception(f"Unsupported arch <{arch}>!"))
-    if arg not in ["synth", "conv"]:
-        raise Exception(f"Unknown tcl wrapper <{arg}>!")
-    return ROOT / arch / f"{arg}.f4pga.tcl"
+    return ROOT / f"{arch}.f4pga.tcl"
diff --git a/f4pga/wrappers/tcl/__main__.py b/f4pga/wrappers/tcl/__main__.py
index 57c71d9..2598a96 100644
--- a/f4pga/wrappers/tcl/__main__.py
+++ b/f4pga/wrappers/tcl/__main__.py
@@ -24,4 +24,4 @@ from f4pga.wrappers.tcl import get_script_path
 
 
 if __name__ == "__main__":
-    print(get_script_path(sys_argv[1], sys_argv[2]) if len(sys_argv) > 2 else get_script_path(sys_argv[1]))
+    print(get_script_path(sys_argv[1] if len(sys_argv) > 1 else None))
diff --git a/f4pga/wrappers/tcl/eos-s3/synth.f4pga.tcl b/f4pga/wrappers/tcl/eos-s3.f4pga.tcl
similarity index 95%
rename from f4pga/wrappers/tcl/eos-s3/synth.f4pga.tcl
rename to f4pga/wrappers/tcl/eos-s3.f4pga.tcl
index 62c93e4..ea438d9 100644
--- a/f4pga/wrappers/tcl/eos-s3/synth.f4pga.tcl
+++ b/f4pga/wrappers/tcl/eos-s3.f4pga.tcl
@@ -181,3 +181,14 @@ exec $::env(PYTHON3) -m f4pga.utils.quicklogic.yosys_fixup_cell_names $::env(OUT
 design -reset
 read_json $::env(OUT_JSON)
 write_verilog $::env(OUT_SYNTH_V)
+
+design -reset
+exec $::env(PYTHON3) -m f4pga.utils.yosys_split_inouts -i $::env(OUT_JSON) -o $::env(SYNTH_JSON)
+read_json $::env(SYNTH_JSON)
+yosys -import
+opt_clean
+write_blif -attr -cname -param \
+  -true VCC VCC \
+  -false GND GND \
+  -undef VCC VCC \
+  $::env(OUT_EBLIF)
diff --git a/f4pga/wrappers/tcl/eos-s3/conv.f4pga.tcl b/f4pga/wrappers/tcl/eos-s3/conv.f4pga.tcl
deleted file mode 100644
index 60587b0..0000000
--- a/f4pga/wrappers/tcl/eos-s3/conv.f4pga.tcl
+++ /dev/null
@@ -1,11 +0,0 @@
-yosys -import
-
-# Clean
-opt_clean
-
-# Write EBLIF
-write_blif -attr -cname -param \
-    -true VCC VCC \
-    -false GND GND \
-    -undef VCC VCC \
-    $::env(OUT_EBLIF)
diff --git a/f4pga/wrappers/tcl/ice40/synth.f4pga.tcl b/f4pga/wrappers/tcl/ice40.f4pga.tcl
similarity index 72%
rename from f4pga/wrappers/tcl/ice40/synth.f4pga.tcl
rename to f4pga/wrappers/tcl/ice40.f4pga.tcl
index 3024c89..a66b896 100644
--- a/f4pga/wrappers/tcl/ice40/synth.f4pga.tcl
+++ b/f4pga/wrappers/tcl/ice40.f4pga.tcl
@@ -27,3 +27,10 @@ setundef -zero -params
 clean_processes
 write_json $::env(OUT_JSON)
 write_verilog $::env(OUT_SYNTH_V)
+
+design -reset
+exec $::env(PYTHON3) -m f4pga.utils.yosys_split_inouts -i $::env(OUT_JSON) -o $::env(SYNTH_JSON)
+read_json $::env(SYNTH_JSON)
+yosys -import
+opt_clean
+write_blif -attr -cname -param $::env(OUT_EBLIF)
diff --git a/f4pga/wrappers/tcl/ice40/conv.f4pga.tcl b/f4pga/wrappers/tcl/ice40/conv.f4pga.tcl
deleted file mode 100644
index 12d355f..0000000
--- a/f4pga/wrappers/tcl/ice40/conv.f4pga.tcl
+++ /dev/null
@@ -1,7 +0,0 @@
-yosys -import
-
-# Clean
-opt_clean
-
-# Write EBLIF
-write_blif -attr -cname -param $::env(OUT_EBLIF)
diff --git a/f4pga/wrappers/tcl/qlf_k4n8/synth.f4pga.tcl b/f4pga/wrappers/tcl/qlf_k4n8.f4pga.tcl
similarity index 77%
rename from f4pga/wrappers/tcl/qlf_k4n8/synth.f4pga.tcl
rename to f4pga/wrappers/tcl/qlf_k4n8.f4pga.tcl
index 06c5bfa..2c8b7f9 100644
--- a/f4pga/wrappers/tcl/qlf_k4n8/synth.f4pga.tcl
+++ b/f4pga/wrappers/tcl/qlf_k4n8.f4pga.tcl
@@ -30,3 +30,10 @@ stat
 
 write_json $::env(OUT_JSON)
 write_verilog $::env(OUT_SYNTH_V)
+
+design -reset
+exec $::env(PYTHON3) -m f4pga.utils.yosys_split_inouts -i $::env(OUT_JSON) -o $::env(SYNTH_JSON)
+read_json $::env(SYNTH_JSON)
+yosys -import
+opt_clean
+write_blif -attr -cname -param $::env(OUT_EBLIF)
diff --git a/f4pga/wrappers/tcl/qlf_k4n8/conv.f4pga.tcl b/f4pga/wrappers/tcl/qlf_k4n8/conv.f4pga.tcl
deleted file mode 100644
index 12d355f..0000000
--- a/f4pga/wrappers/tcl/qlf_k4n8/conv.f4pga.tcl
+++ /dev/null
@@ -1,7 +0,0 @@
-yosys -import
-
-# Clean
-opt_clean
-
-# Write EBLIF
-write_blif -attr -cname -param $::env(OUT_EBLIF)
diff --git a/f4pga/wrappers/tcl/xc7/synth.f4pga.tcl b/f4pga/wrappers/tcl/xc7.f4pga.tcl
similarity index 93%
rename from f4pga/wrappers/tcl/xc7/synth.f4pga.tcl
rename to f4pga/wrappers/tcl/xc7.f4pga.tcl
index b379ff0..dbab425 100644
--- a/f4pga/wrappers/tcl/xc7/synth.f4pga.tcl
+++ b/f4pga/wrappers/tcl/xc7.f4pga.tcl
@@ -243,3 +243,23 @@ clean_processes
 write_json $::env(OUT_JSON)
 # Write the design in Verilog format.
 write_verilog $::env(OUT_SYNTH_V)
+
+design -reset
+exec $::env(PYTHON3) -m f4pga.utils.yosys_split_inouts -i $::env(OUT_JSON) -o $::env(SYNTH_JSON)
+read_json $::env(SYNTH_JSON)
+yosys -import
+opt_clean
+# Designs that directly tie OPAD's to constants cannot use the dedicate
+# constant network as an artifact of the way the ROI is configured.
+# Until the ROI is removed, enable designs to selectively disable the dedicated
+# constant network.
+if { [info exists ::env(USE_LUT_CONSTANTS)] } {
+    write_blif -attr -cname -param \
+      $::env(OUT_EBLIF)
+} else {
+    write_blif -attr -cname -param \
+      -true VCC VCC \
+      -false GND GND \
+      -undef VCC VCC \
+    $::env(OUT_EBLIF)
+}
diff --git a/f4pga/wrappers/tcl/xc7/conv.f4pga.tcl b/f4pga/wrappers/tcl/xc7/conv.f4pga.tcl
deleted file mode 100644
index e2515e9..0000000
--- a/f4pga/wrappers/tcl/xc7/conv.f4pga.tcl
+++ /dev/null
@@ -1,20 +0,0 @@
-yosys -import
-
-# Clean
-opt_clean
-
-# Designs that directly tie OPAD's to constants cannot use the dedicate
-# constant network as an artifact of the way the ROI is configured.
-# Until the ROI is removed, enable designs to selectively disable the dedicated
-# constant network.
-if { [info exists ::env(USE_LUT_CONSTANTS)] } {
-    write_blif -attr -cname -param \
-      $::env(OUT_EBLIF)
-} else {
-    write_blif -attr -cname -param \
-      -true VCC VCC \
-      -false GND GND \
-      -undef VCC VCC \
-    $::env(OUT_EBLIF)
-}
-