diff --git a/config/aarch64/ci.toml b/config/aarch64/ci.toml
index 4dee3649..0b910a6f 100644
--- a/config/aarch64/ci.toml
+++ b/config/aarch64/ci.toml
@@ -102,6 +102,7 @@ smith = {}
 terminfo = {}
 userutils = {}
 uutils = {}
+uutils-procps = {}
 vim = {}
 xz = {}
 zlib = {}
diff --git a/config/i586/ci.toml b/config/i586/ci.toml
index f393a05c..aaa7fed8 100644
--- a/config/i586/ci.toml
+++ b/config/i586/ci.toml
@@ -95,6 +95,7 @@ smith = {}
 terminfo = {}
 userutils = {}
 uutils = {}
+uutils-procps = {}
 xz = {}
 #vim = {} # conflicting types
 zlib = {}
diff --git a/config/riscv64gc/ci.toml b/config/riscv64gc/ci.toml
index a7f99284..5bf0c3ff 100644
--- a/config/riscv64gc/ci.toml
+++ b/config/riscv64gc/ci.toml
@@ -95,6 +95,7 @@ smith = {}
 terminfo = {}
 userutils = {}
 uutils = {}
+uutils-procps = {}
 xz = {}
 #vim = {} # error compiling ncurses
 zlib = {}
diff --git a/recipes/groups/dev-essential/recipe.toml b/recipes/groups/dev-essential/recipe.toml
index c0a8c658..20d59f84 100644
--- a/recipes/groups/dev-essential/recipe.toml
+++ b/recipes/groups/dev-essential/recipe.toml
@@ -7,14 +7,14 @@ dependencies = [
     "gcc13",
     "gcc13.cxx",
     "gnu-grep",
-    # "groff", #TODO: fix compilation error
+    "groff",
     "gawk",
     "file",
     "perl5",
     "python312",
     "ripgrep",
     "lua54",
-    # "m4",  #TODO: fix compilation error
+    "m4",
     "nasm",
     "patch",
     "pkg-config",
diff --git a/recipes/wip/libs/other/m4/recipe.toml b/recipes/wip/libs/other/m4/recipe.toml
index 1c7872c1..780069ee 100644
--- a/recipes/wip/libs/other/m4/recipe.toml
+++ b/recipes/wip/libs/other/m4/recipe.toml
@@ -1,5 +1,7 @@
-#TODO compiler error: port freadahead?
+#TODO compiled but not tested
 [source]
 tar = "https://ftp.gnu.org/gnu/m4/m4-1.4.19.tar.xz"
+blake3 = "22f5754f80b347b525eb1ad89e8ef84312ec80432b79110c7f0161e2185bdc06"
+patches = [ "redox.patch" ]
 [build]
 template = "configure"
diff --git a/recipes/wip/libs/other/m4/redox.patch b/recipes/wip/libs/other/m4/redox.patch
new file mode 100644
index 00000000..002035a1
--- /dev/null
+++ b/recipes/wip/libs/other/m4/redox.patch
@@ -0,0 +1,12 @@
+diff --color -ruwN source/lib/freadahead.c source-new/lib/freadahead.c
+--- source/lib/freadahead.c	2021-04-23 03:28:47.000000000 +0700
++++ source-new/lib/freadahead.c	2026-05-20 10:32:33.459143178 +0700
+@@ -94,6 +94,8 @@
+   if (fp->state == 4 /* WR */ || fp->rp >= fp->wp)
+     return 0;
+   return fp->wp - fp->rp;
++#elif defined __redox__                /* Redox */
++  return 0;
+ #elif defined SLOW_BUT_NO_HACKS     /* users can define this */
+   abort ();
+   return 0;
diff --git a/recipes/wip/tools/groff/recipe.toml b/recipes/wip/tools/groff/recipe.toml
index b851b18d..974007a9 100644
--- a/recipes/wip/tools/groff/recipe.toml
+++ b/recipes/wip/tools/groff/recipe.toml
@@ -1,5 +1,24 @@
-#TODO compilation error - port fseterr.c
 [source]
-tar = "https://ftp.gnu.org/gnu/groff/groff-1.23.0.tar.gz"
+tar = "https://ftp.gnu.org/gnu/groff/groff-1.24.1.tar.gz"
+blake3 = "dc2d3e0a91807ebb3a723d9ee01a45b1b40da10abff7127651861f54a0978466"
+patches = [ "redox.patch" ]
+script = """
+autotools_recursive_regenerate
+"""
+
 [build]
-template = "configure"
+template = "custom"
+dev-dependencies = [
+    "host:groff"
+]
+script = """
+DYNAMIC_INIT
+COOKBOOK_MAKE_FLAGS=()
+if [ "$TARGET" != "$COOKBOOK_HOST_TARGET" ]; then
+# todo
+COOKBOOK_MAKE_FLAGS+=( GROFFBIN="$COOKBOOK_TOOLCHAIN/bin/groff" GROFF_BIN_PATH="$COOKBOOK_TOOLCHAIN/bin" V=1 )
+fi
+"${COOKBOOK_CONFIGURE}" "${COOKBOOK_CONFIGURE_FLAGS[@]}"
+"${COOKBOOK_MAKE}" -j "${COOKBOOK_MAKE_JOBS}" all "${COOKBOOK_MAKE_FLAGS[@]}"
+"${COOKBOOK_MAKE}" install DESTDIR="${COOKBOOK_STAGE}"
+"""
diff --git a/recipes/wip/tools/groff/redox.patch b/recipes/wip/tools/groff/redox.patch
new file mode 100644
index 00000000..ff656385
--- /dev/null
+++ b/recipes/wip/tools/groff/redox.patch
@@ -0,0 +1,49 @@
+diff -ruwN source/lib/fseterr.c source-new/lib/fseterr.c
+--- source/lib/fseterr.c	2026-03-08 20:32:36.000000000 +0700
++++ source-new/lib/fseterr.c	2026-05-20 10:00:55.592770876 +0700
+@@ -53,7 +53,7 @@
+ #elif defined EPLAN9                /* Plan9 */
+   if (fp->state != 0 /* CLOSED */)
+     fp->state = 5 /* ERR */;
+-#elif 0                             /* unknown  */
++#elif defined __redox__                /* unknown  */
+   /* Portable fallback, based on an idea by Rich Felker.
+      Wow! 6 system calls for something that is just a bit operation!
+      Not activated on any system, because there is no way to repair FP when
+diff -ruwN source/Makefile.in source-new/Makefile.in
+--- source/Makefile.in	2026-05-20 10:25:52.529450320 +0700
++++ source-new/Makefile.in	2026-05-20 10:23:19.309839883 +0700
+@@ -5875,7 +5875,6 @@
+ #
+ # Use '-K utf8', not '-k', in case 'configure' didn't find uchardet.
+ MOMPDFMOM = \
+-  GROFF_COMMAND=test-groff \
+   GROFF_COMMAND_PREFIX= \
+   GROFF_BIN_PATH="$(GROFF_BIN_PATH)" \
+   $(PDFMOMBIN) $(FFLAG) $(MFLAG) -M$(mom_srcdir) -K utf8 -p -e -t \
+@@ -6018,7 +6017,6 @@
+ @HAVE_URW_FONTS_TRUE@pdfmomoption = -P-W
+ @HAVE_URW_FONTS_TRUE@groffmanpagesoption = -P-e
+ DOC_PDFMOM = \
+-  GROFF_COMMAND=test-groff \
+   GROFF_COMMAND_PREFIX= \
+   GROFF_BIN_PATH="$(GROFF_BIN_PATH)" \
+   $(PDFMOMBIN) $(MFLAG) $(FFLAG) -ww -b $(pdfmomoption) --roff
+@@ -6086,7 +6084,7 @@
+ PROCESSEDFILES_DEPS_PS = groff troff grops tmac/ps.tmac \
+   font/devps/stamp
+ 
+-PROCESSEDFILES_DEPS_PDF = test-groff groff troff gropdf tmac/pdf.tmac \
++PROCESSEDFILES_DEPS_PDF = groff troff gropdf tmac/pdf.tmac \
+   font/devpdf/stamp
+ 
+ PROCESSEDFILES_DEPS_TXT = groff troff grotty tmac/tty.tmac \
+@@ -19226,7 +19224,7 @@
+ 	&& LC_ALL=C $(MOMPDFMOM) $< >$@
+ 
+ $(MOMPROCESSEDEXAMPLEFILES): $(MOMNORMALFILES) \
+-  test-groff groff troff gropdf pdfmom penguin.ps penguin.pdf \
++  groff troff gropdf pdfmom penguin.ps penguin.pdf \
+   font/devpdf/stamp tmac/pdf.tmac
+ 
+ penguin.ps: