selfautoparent doesn't work, so hard-code the paths.

Index: texmf-dist/scripts/context/lua/mtxrun.lua
--- texmf-dist/scripts/context/lua/mtxrun.lua.orig
+++ texmf-dist/scripts/context/lua/mtxrun.lua
@@ -22505,9 +22505,10 @@ do
  local texroot=environment.texroot
  resolvers.luacnfspec={
   "home:texmf/web2c",
-  "selfautoparent:/texmf-local/web2c",
-  "selfautoparent:/texmf-context/web2c",
-  "selfautoparent:/texmf/web2c",
+  "${TRUEPREFIX}/share/texmf-local/web2c",
+  "${TRUEPREFIX}/share/texmf-context/web2c",
+  "${TRUEPREFIX}/share/texmf-dist/web2c",
+  "${TRUEPREFIX}/share/texmf/web2c",
  }
  if environment.default_texmfcnf then
   resolvers.luacnfspec={
