diff --git a/src/editor/lang-heynote/heynote.grammar b/src/editor/lang-heynote/heynote.grammar
index eabaf6d..afaa8e6 100644
--- a/src/editor/lang-heynote/heynote.grammar
+++ b/src/editor/lang-heynote/heynote.grammar
@@ -11,7 +11,7 @@ NoteDelimiter {
 
 @tokens {
     noteDelimiterMark { "∞∞∞" }
-    NoteLanguage { "text" | "math" | "javascript" | "typescript" | "jsx" | "tsx" | "json" | "python" | "html" | "sql" | "markdown" | "java" | "php" | "css" | "xml" | "cpp" | "rust" | "csharp" | "ruby" | "shell" | "yaml" | "golang" | "clojure" | "erlang" | "lezer" | "toml" | "swift" | "kotlin" | "groovy" | "diff" }
+    NoteLanguage { "text" | "math" | "javascript" | "typescript" | "jsx" | "tsx" | "json" | "python" | "html" | "sql" | "markdown" | "java" | "php" | "css" | "xml" | "cpp" | "rust" | "csharp" | "ruby" | "shell" | "yaml" | "golang" | "clojure" | "erlang" | "lezer" | "toml" | "swift" | "kotlin" | "groovy" | "diff" | "powershell" }
     Auto { "-a" }
     noteDelimiterEnter { "\n" }
     //NoteContent { String }
diff --git a/src/editor/lang-heynote/parser.js b/src/editor/lang-heynote/parser.js
index 6d7ed58..e24be27 100644
--- a/src/editor/lang-heynote/parser.js
+++ b/src/editor/lang-heynote/parser.js
@@ -10,7 +10,7 @@ export const parser = LRParser.deserialize({
   maxTerm: 10,
   skippedNodes: [0],
   repeatNodeCount: 1,
-  tokenData: "-V~RbYZ!Z}!O!`#V#W!k#W#X$X#X#Y$k#Z#[%Z#[#]%|#^#_&`#_#`'|#`#a(f#a#b)O#d#e)}#f#g*j#g#h*y#h#i+o#l#m&S#m#n,n%&x%&y,t~!`OX~~!cP#T#U!f~!kOU~~!nR#`#a!w#d#e#l#g#h#r~!zP#c#d!}~#QP#^#_#T~#WP#i#j#Z~#^P#f#g#a~#dP#X#Y#g~#lOT~~#oP#d#e#g~#uQ#[#]#{#g#h#g~$OP#T#U$R~$UP#f#g#l~$[P#]#^$_~$bP#Y#Z$e~$hP#Y#Z#g~$nP#f#g$q~$tP#`#a$w~$zP#T#U$}~%QP#b#c%T~%WP#Z#[#g~%^Q#c#d$q#f#g%d~%gP#c#d%j~%mP#c#d%p~%sP#j#k%v~%yP#m#n#g~&PP#h#i&S~&VP#a#b&Y~&]P#`#a#g~&cQ#T#U&i#g#h'm~&lP#j#k&o~&rP#T#U&u~&zPT~#g#h&}~'QP#V#W'T~'WP#f#g'Z~'^P#]#^'a~'dP#d#e'g~'jP#h#i#g~'pQ#c#d'v#l#m#g~'yP#b#c#g~(PP#c#d(S~(VP#h#i(Y~(]P#`#a(`~(cP#]#^'v~(iP#X#Y(l~(oP#n#o(r~(uP#X#Y(x~({P#f#g#g~)RP#T#U)U~)XQ#f#g)_#h#i)w~)bP#_#`)e~)hP#W#X)k~)nP#c#d)q~)tP#k#l'v~)zP#[#]#g~*QQ#[#]#l#m#n*W~*ZP#h#i*^~*aP#[#]*d~*gP#c#d'v~*mP#i#j*p~*sQ#U#V%v#g#h'g~*|R#[#]+V#e#f&Y#k#l+c~+YP#X#Y+]~+`P#`#a&Y~+fP#]#^+i~+lP#Y#Z'g~+rS#X#Y,O#c#d&S#g#h,U#m#n,[~,RP#l#m'g~,XP#l#m#g~,_P#d#e,b~,eP#X#Y,h~,kP#g#h&}~,qP#T#U&S~,wP%&x%&y,z~,}P%&x%&y-Q~-VOY~",
+  tokenData: "-x~RbYZ!Z}!O!`#V#W!k#W#X$X#X#Y$k#Z#[%Z#[#]%|#^#_&`#_#`'|#`#a(f#a#b)O#d#e)}#f#g+i#g#h+x#h#i,b#l#m&S#m#n-a%&x%&y-g~!`OX~~!cP#T#U!f~!kOU~~!nR#`#a!w#d#e#l#g#h#r~!zP#c#d!}~#QP#^#_#T~#WP#i#j#Z~#^P#f#g#a~#dP#X#Y#g~#lOT~~#oP#d#e#g~#uQ#[#]#{#g#h#g~$OP#T#U$R~$UP#f#g#l~$[P#]#^$_~$bP#Y#Z$e~$hP#Y#Z#g~$nP#f#g$q~$tP#`#a$w~$zP#T#U$}~%QP#b#c%T~%WP#Z#[#g~%^Q#c#d$q#f#g%d~%gP#c#d%j~%mP#c#d%p~%sP#j#k%v~%yP#m#n#g~&PP#h#i&S~&VP#a#b&Y~&]P#`#a#g~&cQ#T#U&i#g#h'm~&lP#j#k&o~&rP#T#U&u~&zPT~#g#h&}~'QP#V#W'T~'WP#f#g'Z~'^P#]#^'a~'dP#d#e'g~'jP#h#i#g~'pQ#c#d'v#l#m#g~'yP#b#c#g~(PP#c#d(S~(VP#h#i(Y~(]P#`#a(`~(cP#]#^'v~(iP#X#Y(l~(oP#n#o(r~(uP#X#Y(x~({P#f#g#g~)RP#T#U)U~)XQ#f#g)_#h#i)w~)bP#_#`)e~)hP#W#X)k~)nP#c#d)q~)tP#k#l'v~)zP#[#]#g~*QR#[#]#l#c#d*Z#m#n+V~*^P#k#l*a~*dP#X#Y*g~*jP#f#g*m~*pP#g#h*s~*vP#[#]*y~*|P#X#Y+P~+SP#`#a&Y~+YP#h#i+]~+`P#[#]+c~+fP#c#d'v~+lP#i#j+o~+rQ#U#V%v#g#h'g~+{R#[#]*y#e#f&Y#k#l,U~,XP#]#^,[~,_P#Y#Z'g~,eS#X#Y,q#c#d&S#g#h,w#m#n,}~,tP#l#m'g~,zP#l#m#g~-QP#d#e-T~-WP#X#Y-Z~-^P#g#h&}~-dP#T#U&S~-jP%&x%&y-m~-pP%&x%&y-s~-xOY~",
   tokenizers: [0, noteContent],
   topRules: {"Document":[0,2]},
   tokenPrec: 0
diff --git a/src/editor/languages.js b/src/editor/languages.js
index 336b0b7..a7d85ea 100644
--- a/src/editor/languages.js
+++ b/src/editor/languages.js
@@ -25,6 +25,7 @@ import { swift } from "@codemirror/legacy-modes/mode/swift"
 import { kotlin } from "@codemirror/legacy-modes/mode/clike"
 import { groovy } from "@codemirror/legacy-modes/mode/groovy"
 import { diff } from "@codemirror/legacy-modes/mode/diff";
+import { powerShell } from "@codemirror/legacy-modes/mode/powershell";
 
 import typescriptPlugin from "prettier/plugins/typescript.mjs"
 import babelPrettierPlugin from "prettier/plugins/babel.mjs"
@@ -246,6 +247,12 @@ export const LANGUAGES = [
         parser: StreamLanguage.define(diff).parser,
         guesslang: null,
     }),
+    new Language({
+        token: "powershell",
+        name: "PowerShell",
+        parser: StreamLanguage.define(powerShell).parser,
+        guesslang: "ps1",
+    }),
 ]