Figured out why tailwindcss fails on Linux.

.gitignore

@@ -31,3 +31,4 @@ config.toml
 public
 *.idx
 *.sqlite3
+webapp

.ozai.json

@@ -3,7 +3,7 @@
   "Processes": {
     "webapp": {
       "URL": "/webapp",
-      "Command": "webapp",
+      "Command": "./webapp",
       "Args": []
     },
     "ssgod": {

Makefile

@@ -28,11 +28,14 @@ migrate_down:
 docs:
 	pkgsite --open
 
+fix_ubuntu_ulimit:
+	ulimit -n 65536
+
 tailwind:
 	tailwindcss --input ./static/input_style.css --output ./static/style.css
 
 tailwind_watch:
-	tailwindcss --input ./static/input_style.css --output ./static/style.css --watch
+	tailwindcss --input ./static/input_style.css --output ./static/style.css --watch=always
 
 tailwind_install:
 	curl -LO https://github.com/tailwindlabs/tailwindcss/releases/download/v4.1.12/tailwindcss-linux-x64

go.sum

@@ -121,11 +121,7 @@ gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EV
 gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
-lcthw.dev/go/ozai v0.0.0-20250910184003-c03f8efb4764 h1:usA3aED1GOnoqYSqfH0kUgickaQauyRoQW8yGaY1RK0=
-lcthw.dev/go/ozai v0.0.0-20250910184003-c03f8efb4764/go.mod h1:AwxRrUAb/KtUzSWgKmhv/eBg6ZjJ4tVZ9YA/DlKqtWs=
 lcthw.dev/go/ozai v0.1.0 h1:LNuLMZV4m+ciHRjf1atcunR/63Jguvz3puEzD5vmFec=
 lcthw.dev/go/ozai v0.1.0/go.mod h1:AwxRrUAb/KtUzSWgKmhv/eBg6ZjJ4tVZ9YA/DlKqtWs=
-lcthw.dev/go/ssgod v0.0.0-20250910143122-4457e9bad2af h1:PN/XR1qhfxTn32AGOdQgyBPJs0qqnWVLcPxE5IUENgM=
-lcthw.dev/go/ssgod v0.0.0-20250910143122-4457e9bad2af/go.mod h1:c0cAznS0qaDUOIGU8nKODfuFLwemEi/KGDCf8guTleA=
 lcthw.dev/go/ssgod v0.1.0 h1:b1YkIc7hEgUen8zF85ZRG5YCyCeFAvx1KtmNFp1OuMg=
 lcthw.dev/go/ssgod v0.1.0/go.mod h1:c0cAznS0qaDUOIGU8nKODfuFLwemEi/KGDCf8guTleA=

pages/index.md

@@ -90,6 +90,26 @@ this, when you're ready to work just do:
 make dev
 ```
 
+## Linux Bug?
+
+I found that on Ubuntu the `tailwindcss` command "wouldn't run." Turns out when `tailwindcss` forks
+it does the right thing and closes all possible open file descriptors, _but_ Ubuntu has set the hard
+limit to 1 billion:
+
+```shell
+$ ulimit -Hn
+1073741816
+```
+
+This is a _lot_ of files to try to close, so `tailwindcss` is actually stuck doing that.  You can
+fix this with:
+
+```shell
+ulimit -n 65536
+```
+
+You can pick any reasonable number, and then `tailwindcss` works like expected.
+
 ## Configuration
 
 There's 3 basic moving parts to the whole system:  `webapp.exe`, `ssgod`, `tailwind`, and `ozai`.