ops for nixos, gitignore'd ts-lsp .log

.gitignore

@@ -6,3 +6,4 @@ yarn-error.log
 .DS_Store
 **/.sync.ffs_db
 .direnv
+.log

README.md

@@ -35,6 +35,7 @@ The playground depends on the components library which then depends on the langu
 # Develop
 
 For any project in the repo, begin by running `yarn` in the top level
+
 ```sh
 yarn
 ```

nixos.sh

@@ -0,0 +1,15 @@
+#!/usr/bin/env bash
+set -x
+
+fhsShellName="squiggle-development"
+# Esy (a bisect_ppx dependency/build tool) is borked on nixos without using an FHS shell. https://github.com/esy/esy/issues/858
+fhsShellDotNix="{pkgs ? import <nixpkgs> {} }: (pkgs.buildFHSUserEnv { name = \"${fhsShellName}\"; targetPkgs = pkgs: [pkgs.yarn]; runScript = \"yarn\"; }).env"
+nix-shell - <<<"$fhsShellDotNix"
+
+# We need to patchelf rescript executables. https://github.com/NixOS/nixpkgs/issues/107375
+theLd=$(patchelf --print-interpreter $(which mkdir))
+patchelf --set-interpreter $theLd ./node_modules/gentype/gentype.exe
+patchelf --set-interpreter $theLd ./node_modules/rescript/linux/*.exe
+patchelf --set-interpreter $theLd ./node_modules/bisect_ppx/ppx
+theSo=$(find /nix/store/*$fhsShellName*/lib64 -name libstdc++.so.6 | grep squiggle-development | head -n 1)
+patchelf --replace-needed libstdc++.so.6 $theSo ./node_modules/rescript/linux/ninja.exe