diff --git a/pkgs/by-name/tl/tla/configure-tmpdir.patch b/pkgs/by-name/tl/tla/configure-tmpdir.patch
deleted file mode 100644
index 2b39322ca22f..000000000000
--- a/pkgs/by-name/tl/tla/configure-tmpdir.patch
+++ /dev/null
@@ -1,11 +0,0 @@
---- tla-1.3.5/src/build-tools/auto-conf-lib/gnu-patch-test	2006-07-20 08:34:28.000000000 +0200
-+++ tla-1.3.5/src/build-tools/auto-conf-lib/gnu-patch-test	2008-02-17 13:00:07.000000000 +0100
-@@ -27,7 +27,7 @@ else
- fi
- 
- CMP='cmp'    # we require a working 'cmp' utility
--TMPDIR="/tmp/,patch-test.$$"
-+TMPDIR="${TMPDIR:-/tmp}/,patch-test.$$"
- 
- ORIG_A="$TMPDIR/to-patch_a"
- ORIG_PRISTINE_A="$TMPDIR/to-patch_a.the-original"
diff --git a/pkgs/by-name/tl/tla/fix-gcc14.patch b/pkgs/by-name/tl/tla/fix-gcc14.patch
deleted file mode 100644
index 9519498bda26..000000000000
--- a/pkgs/by-name/tl/tla/fix-gcc14.patch
+++ /dev/null
@@ -1,388 +0,0 @@
-diff --git a/src/hackerlab/machine/endian.sh b/src/hackerlab/machine/endian.sh
-index 2a1c562..92bc81e 100644
---- a/src/hackerlab/machine/endian.sh
-+++ b/src/hackerlab/machine/endian.sh
-@@ -5,8 +5,9 @@
- CC="$1"
- 
- cat > endian-test.c << EOF
--
--main()
-+#include <stdlib.h>
-+ 
-+int main()
- {
-   unsigned int x = 1;
- 
-diff --git a/src/hackerlab/tests/rx-posix-tests/test-dbug.c b/src/hackerlab/tests/rx-posix-tests/test-dbug.c
-index 4620c31..3b7d35c 100644
---- a/src/hackerlab/tests/rx-posix-tests/test-dbug.c
-+++ b/src/hackerlab/tests/rx-posix-tests/test-dbug.c
-@@ -124,7 +124,7 @@ main (int argc, char * argv[])
-       {
- 	subexps = 0;
- 	nsub = 1;
--	rx_analyze_rexp (&subexps, &nsub, exp);
-+	rx_analyze_rexp (&subexps, (size_t *)&nsub, exp);
- 	rx_print_rexp (1, 256, 0, exp);
- 	if (nfa)
- 	  {
-diff --git a/src/hackerlab/vu/vu-pathcompress.c b/src/hackerlab/vu/vu-pathcompress.c
-index 711acbe..3ea10d5 100644
---- a/src/hackerlab/vu/vu-pathcompress.c
-+++ b/src/hackerlab/vu/vu-pathcompress.c
-@@ -86,7 +86,7 @@ void pathcompress_free_closure(void * closure)
-   vu_sys_free_closure(closure);
- }
- 
--int pathcompress_access(int* errn, char* path, int mode, void* closure)
-+int pathcompress_access(int* errn, const char* path, int mode, void* closure)
- {
-   int rvl;
-   char compressed_path[PATH_LEN]="";
-@@ -97,7 +97,7 @@ int pathcompress_access(int* errn, char* path, int mode, void* closure)
-   return rvl;
- }
- 
--int pathcompress_chdir(int * errn, char * path, void * closure)
-+int pathcompress_chdir(int * errn, const char * path, void * closure)
- {
-   int rvl;
-   char compressed_path[PATH_LEN]="";
-@@ -108,7 +108,7 @@ int pathcompress_chdir(int * errn, char * path, void * closure)
-   return rvl;
- }
- 
--int pathcompress_chmod(int * errn, char * path, int mode, void * closure)
-+int pathcompress_chmod(int * errn, const char * path, int mode, void * closure)
- {
-   int rvl;
-   char compressed_path[PATH_LEN]="";
-@@ -119,7 +119,7 @@ int pathcompress_chmod(int * errn, char * path, int mode, void * closure)
-   return rvl;
- }
- 
--int pathcompress_chown(int * errn, char * path, int owner, int group, void * closure)
-+int pathcompress_chown(int * errn, const char * path, int owner, int group, void * closure)
- {
-   int rvl;
-   char compressed_path[PATH_LEN]="";
-@@ -130,7 +130,7 @@ int pathcompress_chown(int * errn, char * path, int owner, int group, void * clo
-   return rvl;
- }
- 
--int pathcompress_chroot(int * errn, char * path, void * closure)
-+int pathcompress_chroot(int * errn, const char * path, void * closure)
- {
-   int rvl;
-   char compressed_path[PATH_LEN]="";
-@@ -254,7 +254,7 @@ int pathcompress_getcwd(char* cwd, size_t size)
-   return rvl;
- }
- 
--int pathcompress_link(int * errn, char * from, char * to, void * closure)
-+int pathcompress_link(int * errn, const char * from, const char * to, void * closure)
- {
-   int rvl;
-   char compressed_from[PATH_LEN]="";
-@@ -276,7 +276,7 @@ off_t pathcompress_lseek(int * errn, int fd, off_t offset, int whence, void * cl
-   return rvl;
- }
- 
--int pathcompress_lstat(int * errn, char * path, struct stat * buf, void * closure)
-+int pathcompress_lstat(int * errn, const char * path, struct stat * buf, void * closure)
- {
-   int rvl;
-   char compressed_path[PATH_LEN]="";
-@@ -293,7 +293,7 @@ int pathcompress_lstat(int * errn, char * path, struct stat * buf, void * closur
-   return rvl;
- }
- 
--int pathcompress_mkdir(int * errn, char * path, int mode, void * closure)
-+int pathcompress_mkdir(int * errn, const char * path, int mode, void * closure)
- {
-   int rvl;
-   char abspath[PATH_LEN]="";
-@@ -315,7 +315,7 @@ int pathcompress_mkdir(int * errn, char * path, int mode, void * closure)
-   return rvl;
- }
- 
--int pathcompress_open(int * errn, char * path, int flags, int mode, void * closure)
-+int pathcompress_open(int * errn, const char * path, int flags, int mode, void * closure)
- {
-   int rvl;
-   char* p;
-@@ -368,7 +368,7 @@ int pathcompress_open(int * errn, char * path, int flags, int mode, void * closu
-   return 0;
- }
- 
--int pathcompress_opendir(int * errn, DIR ** retv, char * path, void * closure)
-+int pathcompress_opendir(int * errn, DIR ** retv, const char * path, void * closure)
- {
-   int rvl;
-   char compressed_path[PATH_LEN]="";
-@@ -453,7 +453,7 @@ int pathcompress_readdir(int * errn, struct alloc_limits * limits, char ** file_
-   return rvl;
- }
- 
--int pathcompress_readlink(int * errn, char * path, char * buf, int bufsize, void * closure)
-+int pathcompress_readlink(int * errn, const char * path, char * buf, int bufsize, void * closure)
- {
-   int rvl;
-   char compressed_path[PATH_LEN]="";
-@@ -467,7 +467,7 @@ int pathcompress_readlink(int * errn, char * path, char * buf, int bufsize, void
-   return rvl;
- }
- 
--int pathcompress_rename(int * errn, char * from, char * to, void * closure)
-+int pathcompress_rename(int * errn, const char * from, const char * to, void * closure)
- {
-   struct stat stat;
-   int err;
-@@ -502,7 +502,7 @@ int pathcompress_rename(int * errn, char * from, char * to, void * closure)
-   return rvl;
- }
- 
--int pathcompress_rmdir(int * errn, char * path, void * closure)
-+int pathcompress_rmdir(int * errn, const char * path, void * closure)
- {
-   int rvl;
-   char dirnames[PATH_LEN]="";
-@@ -517,7 +517,7 @@ int pathcompress_rmdir(int * errn, char * path, void * closure)
-   return rvl;
- }
- 
--int pathcompress_stat(int * errn, char * path, struct stat * buf, void * closure)
-+int pathcompress_stat(int * errn, const char * path, struct stat * buf, void * closure)
- {
-   int rvl;
-   char compressed_path[PATH_LEN]="";
-@@ -537,7 +537,7 @@ int pathcompress_stat(int * errn, char * path, struct stat * buf, void * closure
-   return rvl;
- }
- 
--int pathcompress_symlink(int * errn, char * from, char * to, void * closure)
-+int pathcompress_symlink(int * errn, const char * from, const char * to, void * closure)
- {
-   int rvl;
-   char compressed_from[PATH_LEN]="";
-@@ -553,7 +553,7 @@ int pathcompress_symlink(int * errn, char * from, char * to, void * closure)
-   return rvl;
- }
- 
--int pathcompress_truncate(int * errn, char * path, off_t where, void * closure)
-+int pathcompress_truncate(int * errn, const char * path, off_t where, void * closure)
- {
-   int rvl;
-   char compressed_path[PATH_LEN]="";
-@@ -566,7 +566,7 @@ int pathcompress_truncate(int * errn, char * path, off_t where, void * closure)
-   return rvl;
- }
- 
--int pathcompress_unlink(int * errn, char * path, void * closure)
-+int pathcompress_unlink(int * errn, const char * path, void * closure)
- {
-   int rvl;
-   char compressed_path[PATH_LEN]="";
-@@ -578,7 +578,7 @@ int pathcompress_unlink(int * errn, char * path, void * closure)
-   return rvl;
- }
- 
--int pathcompress_utime(int * errn, char * path, struct utimbuf * times, void * closure)
-+int pathcompress_utime(int * errn, const char * path, struct utimbuf * times, void * closure)
- {
-   int rvl;
-   char compressed_path[PATH_LEN]="";
-@@ -590,7 +590,7 @@ int pathcompress_utime(int * errn, char * path, struct utimbuf * times, void * c
-   return rvl;
- }
- 
--ssize_t pathcompress_write(int * errn, int fd, char * buf, size_t count, void * closure)
-+ssize_t pathcompress_write(int * errn, int fd, const char * buf, size_t count, void * closure)
- {
-   int rvl;
-   Dprintf("pathcompress_write(%d,%p,%d)", fd, buf, count);
-diff --git a/src/tla/libarch/changeset-report.c b/src/tla/libarch/changeset-report.c
-index d3539b3..1672c2f 100644
---- a/src/tla/libarch/changeset-report.c
-+++ b/src/tla/libarch/changeset-report.c
-@@ -630,7 +630,7 @@ print_custom_diffs (int out_fd, struct arch_changeset_report * report, t_uchar *
-           orig_path = file_name_in_vicinity(0, orig_dir, orig_part_path);
-           mod_path = file_name_in_vicinity(0, mod_dir, id2 /*report->patched_regular_files[x][0]*/);
- 	  
--	  arch_really_invoke_diff ( out_fd, orig_path,  orig_part_path, mod_path, id2 /*report->patched_regular_files[x][0]*/, (char **)opts);
-+	  arch_really_invoke_diff ( out_fd, orig_path,  orig_part_path, mod_path, id2 /*report->patched_regular_files[x][0]*/, (const char **)opts);
- 	  
-           rel_field_unref(key);
-           lim_free(0, mod_path);
-@@ -650,7 +650,7 @@ print_custom_diffs (int out_fd, struct arch_changeset_report * report, t_uchar *
-         {
-           t_uchar *id = str_save(0, rel_peek_str(report->added_files, x, 2));
-           t_uchar *id2 = str_save(0, rel_peek_str(report->added_files, x, 0));
--          arch_really_invoke_diff ( out_fd, "/dev/null", NULL, id /*report->added_files[x][2]*/, id2 /*report->added_files[x][0]*/, (char**)opts);
-+          arch_really_invoke_diff ( out_fd, "/dev/null", NULL, id /*report->added_files[x][2]*/, id2 /*report->added_files[x][0]*/, (const char**)opts);
-           lim_free(0, id);
-           lim_free(0, id2);
-         }
-@@ -680,7 +680,7 @@ print_removed_file_diffs (int out_fd, struct arch_changeset_report * report, t_u
-         {
-           t_uchar *id = str_save(0, rel_peek_str(report->removed_files, x, 2));
-           t_uchar *id2 = str_save(0, rel_peek_str(report->removed_files, x, 0));
--          arch_really_invoke_diff ( out_fd, id /*report->removed_files[x][2]*/, id2 /*report->removed_files[x][0]*/, "/dev/null", NULL, (char**)opts);
-+          arch_really_invoke_diff ( out_fd, id /*report->removed_files[x][2]*/, id2 /*report->removed_files[x][0]*/, "/dev/null", NULL, (const char**)opts);
-           lim_free(0, id);
-           lim_free(0, id2);
-         }
-diff --git a/src/tla/libarch/cmd-apply-delta.c b/src/tla/libarch/cmd-apply-delta.c
-index 8aebd8b..5a8615e 100644
---- a/src/tla/libarch/cmd-apply-delta.c
-+++ b/src/tla/libarch/cmd-apply-delta.c
-@@ -31,6 +31,8 @@
- #include "tla/libarch/cmd-get.h"
- #include "tla/libarch/cmd-delta.h"
- #include "tla/libarch/cmd-apply-delta.h"
-+#include "tla/libarch/cmdutils.h"
-+#include "tla/libarch/star-merge.h"
- 
- 
- /* __STDC__ prototypes for static functions */
-diff --git a/src/tla/libarch/cmd-branch.c b/src/tla/libarch/cmd-branch.c
-index 6308fef..d63c75c 100644
---- a/src/tla/libarch/cmd-branch.c
-+++ b/src/tla/libarch/cmd-branch.c
-@@ -26,6 +26,7 @@
- #include "tla/libarch/cmd-switch.h"
- #include "tla/libarch/cmdutils.h"
- #include "tla/libarch/archive-setup.h"
-+#include "tla/libarch/cmd.h"
- 
- 
- 
-diff --git a/src/tla/libarch/cmd-diff.c b/src/tla/libarch/cmd-diff.c
-index 98dbe19..4b678b0 100644
---- a/src/tla/libarch/cmd-diff.c
-+++ b/src/tla/libarch/cmd-diff.c
-@@ -30,6 +30,7 @@
- #include "tla/libarch/cmd-diff.h"
- #include "tla/libarch/cmd-versions.h"
- #include "tla/libarch/invent.h"
-+#include "tla/libarch/make-changeset-files.h"
- 
- 
- /* gettext support not yet incorporated into tla, reserve the gettext notation for later */
-@@ -38,7 +39,7 @@
- 
- 
- /* __STDC__ prototypes for static functions */
--static void make_changeset_callback (void * ign, char * fmt, va_list ap);
-+static void make_changeset_callback (void * ign, const char * fmt, va_list ap);
- 
- 
- 
-@@ -527,7 +528,7 @@ arch_cmd_diff (t_uchar * program_name, int argc, char * argv[])
- 
- 
- static void
--make_changeset_callback (void * ign, char * fmt, va_list ap)
-+make_changeset_callback (void * ign, const char * fmt, va_list ap)
- {
-   safe_printfmt_va_list (1, fmt, ap);
-   safe_flush (1);
-diff --git a/src/tla/libarch/cmd-export.c b/src/tla/libarch/cmd-export.c
-index bfed694..24e5d6a 100644
---- a/src/tla/libarch/cmd-export.c
-+++ b/src/tla/libarch/cmd-export.c
-@@ -35,6 +35,7 @@
- #include "tla/libarch/cmd.h"
- #include "tla/libarch/cmdutils.h"
- #include "tla/libarch/cmd-export.h"
-+#include "tla/libarch/chatter.h"
- 
- 
- 
-diff --git a/src/tla/libarch/cmdutils.c b/src/tla/libarch/cmdutils.c
-index 3aafd13..195d636 100644
---- a/src/tla/libarch/cmdutils.c
-+++ b/src/tla/libarch/cmdutils.c
-@@ -20,6 +20,7 @@
- #include "tla/libarch/patch-logs.h"
- #include "tla/libarch/pfs.h"
- #include "tla/libfsutils/dir-as-cwd.h"
-+#include "tla/libarch/local-cache.h"
- 
- 
- /* __STDC__ prototypes for static functions */
-diff --git a/src/tla/libarch/diffs.c b/src/tla/libarch/diffs.c
-index dcae932..5f935ae 100644
---- a/src/tla/libarch/diffs.c
-+++ b/src/tla/libarch/diffs.c
-@@ -230,7 +230,7 @@ arch_really_invoke_diff (int output_fd,
-       if (extraopts != NULL)
-         {
-           t_uchar ** opt;
--          for (opt = extraopts; *opt != NULL; ++opt)
-+          for (opt = (t_uchar**)extraopts; *opt != NULL; ++opt)
-             {
-               *(t_uchar **) ar_push ((void*) &argv, 0, sizeof(t_uchar*)) = *opt;
- 
-diff --git a/src/tla/libarch/invent.c b/src/tla/libarch/invent.c
-index 077d776..defd2da 100644
---- a/src/tla/libarch/invent.c
-+++ b/src/tla/libarch/invent.c
-@@ -19,6 +19,7 @@
- #include "tla/libarch/inode-sig.h"
- #include "tla/libarch/inv-ids.h"
- #include "tla/libarch/invent.h"
-+#include "cmdutils.h"
- 
- 
- 
-diff --git a/src/tla/libarch/local-cache.c b/src/tla/libarch/local-cache.c
-index 0cade1b..945cd8b 100644
---- a/src/tla/libarch/local-cache.c
-+++ b/src/tla/libarch/local-cache.c
-@@ -24,6 +24,7 @@
- #include "tla/libarch/library-txn.h"
- #include "tla/libarch/local-cache.h"
- #include "tla/libarch/namespace.h"
-+#include "project-tree.h"
- 
- 
- 
-diff --git a/src/tla/libarch/pfs-ftp.c b/src/tla/libarch/pfs-ftp.c
-index 546c702..c457837 100644
---- a/src/tla/libarch/pfs-ftp.c
-+++ b/src/tla/libarch/pfs-ftp.c
-@@ -12,6 +12,7 @@
- #include <string.h>
- #include <stdio.h>
- #include <errno.h>
-+#include <ctype.h>
- #include "config-options.h"
- #include "hackerlab/bugs/panic.h"
- #include "hackerlab/os/errno-to-string.h"
-diff --git a/src/tla/libarch/undo.c b/src/tla/libarch/undo.c
-index abc40e9..dc8e6ed 100644
---- a/src/tla/libarch/undo.c
-+++ b/src/tla/libarch/undo.c
-@@ -19,6 +19,7 @@
- #include "tla/libarch/apply-changeset.h"
- #include "tla/libarch/chatter.h"
- #include "tla/libarch/undo.h"
-+#include "tla/libarch/make-changeset-files.h"
- 
- 
- /* __STDC__ prototypes for static functions */
-diff --git a/src/tla/libfsutils/tmp-files.c b/src/tla/libfsutils/tmp-files.c
-index 164acdb..1188627 100644
---- a/src/tla/libfsutils/tmp-files.c
-+++ b/src/tla/libfsutils/tmp-files.c
-@@ -18,6 +18,8 @@
- #include "hackerlab/fs/file-names.h"
- #include "hackerlab/vu/safe.h"
- #include "tla/libfsutils/tmp-files.h"
-+#include "hackerlab/fs/tmp-files.h"
-+#include "tla/libarch/cmdutils.h"
- 
- 
- 
diff --git a/pkgs/by-name/tl/tla/package.nix b/pkgs/by-name/tl/tla/package.nix
deleted file mode 100644
index 7794b1d68f01..000000000000
--- a/pkgs/by-name/tl/tla/package.nix
+++ /dev/null
@@ -1,47 +0,0 @@
-{
-  lib,
-  stdenv,
-  fetchurl,
-  which,
-  diffutils,
-  gnupatch,
-  gnutar,
-}:
-
-stdenv.mkDerivation (finalAttrs: {
-  pname = "tla";
-  version = "1.3.5";
-
-  src = fetchurl {
-    url = "https://ftp.gnu.org/old-gnu/gnu-arch/tla-${finalAttrs.version}.tar.gz";
-    sha256 = "01mfzj1i6p4s8191cgd5850hds1zls88hkf9rb6qx1vqjv585aj0";
-  };
-
-  patches = [
-    ./configure-tmpdir.patch
-    ./fix-gcc14.patch
-  ];
-
-  buildInputs = [ which ];
-
-  propagatedBuildInputs = [
-    diffutils
-    gnupatch
-    gnutar
-  ];
-
-  # Instead of GNU Autoconf, tla uses Tom Lord's now
-  # defunct `package-framework'.
-  buildPhase = ''
-    mkdir +build && cd +build &&		\
-    ../src/configure --prefix="$out" &&		\
-    make install
-  '';
-
-  meta = {
-    description = "GNU Arch (aka. `tla'), a distributed revision control system";
-    mainProgram = "tla";
-    homepage = "https://www.gnu.org/software/gnu-arch/";
-    license = lib.licenses.gpl2Plus;
-  };
-})
diff --git a/pkgs/top-level/aliases.nix b/pkgs/top-level/aliases.nix
index fe55801cc253..8db1254659cc 100644
--- a/pkgs/top-level/aliases.nix
+++ b/pkgs/top-level/aliases.nix
@@ -2047,6 +2047,7 @@ mapAliases {
   tkcvs = throw "'tkcvs' has been renamed to/replaced by 'tkrev'"; # Converted to throw 2025-10-27
   tkgate = throw "'tkgate' has been removed as it is unmaintained"; # Added 2025-05-17
   tkimg = throw "'tkimg' has been renamed to/replaced by 'tclPackages.tkimg'"; # Converted to throw 2025-10-27
+  tla = throw "'tla' has been removed as it is broken and unmaintained. Please use 'breezy' instead"; # Added 2026-04-23
   tlaplusToolbox = tlaplus-toolbox; # Added 2025-08-21
   tokyo-night-gtk = throw "'tokyo-night-gtk' has been renamed to/replaced by 'tokyonight-gtk-theme'"; # Converted to throw 2025-10-27
   tomcat_connectors = throw "'tomcat_connectors' has been renamed to/replaced by 'apacheHttpdPackages.mod_jk'"; # Converted to throw 2025-10-27