diff --git a/scripts/render_terminal.py b/scripts/render_terminal.py
index ce731f3..8ef4d95 100644
--- a/scripts/render_terminal.py
+++ b/scripts/render_terminal.py
@@ -9,6 +9,37 @@ import asyncio, html, io, re
 from PIL import Image
 from playwright.async_api import async_playwright
 
+
+ANSI_COL={30:'#6e7681',31:'#ff5c6c',32:'#3ddc84',33:'#ffb454',34:'#58a6ff',35:'#d2a8ff',36:'#7fdbff',37:'#e6edf3',
+          90:'#8b949e',91:'#ff7b86',92:'#56f09f',93:'#ffd479',94:'#79c0ff',95:'#e2c5ff',96:'#a5f3ff',97:'#ffffff'}
+def ansi_to_html(line):
+    """Convert ANSI SGR colour/bold sequences to <span> tags (everything else is stripped)."""
+    out=[]; open_spans=0; pos=0
+    for m in re.finditer(r'\x1b\[([0-9;]*)m|\x1b\[[0-9;?]*[A-Za-z]',line):
+        out.append(html.escape(line[pos:m.start()])); pos=m.end()
+        if m.group(1) is None: continue
+        codes=[int(c) if c else 0 for c in m.group(1).split(';')]
+        for c in codes:
+            if c==0: out.append('</span>'*open_spans); open_spans=0
+            elif c==1: out.append('<span style="font-weight:700">'); open_spans+=1
+            elif c in ANSI_COL: out.append(f'<span style="color:{ANSI_COL[c]}">'); open_spans+=1
+    out.append(html.escape(line[pos:])); out.append('</span>'*open_spans)
+    return ''.join(out)
+
+def mask(lines, serial_cols=True, ips=True):
+    """Sanitize output before publishing: hide drive serials and private IPs."""
+    res=[]
+    for l in lines:
+        if ips: l=re.sub(r'\b(10|192\.168|172\.(1[6-9]|2\d|3[01]))\.(\d+)\.(\d+)\.(\d+)\b','x.x.x.x',l) if not l.startswith('x') else l
+        if serial_cols and re.match(r'^(\d+|m2-\d)\s+/dev/',l):
+            parts=re.split(r'(\s{2,})',l)
+            # fields alternate with whitespace; serial is the 8th field (index 14 in the split list)
+            if len(parts)>14:
+                v=parts[14]; parts[14]=v[:2]+'\u2022'*max(0,len(v)-2)
+            l=''.join(parts)
+        res.append(l)
+    return res
+
 DEFAULT_RULES=[(r'✓|\bOK\b|\bNORMAL\b|\bPASS(ED)?\b|HEALTH_OK','#3ddc84'),(r'⚠️?|\bWARN(ING)?\b|HEALTH_WARN|\[WARN\]','#ffb454'),(r'\bERROR\b|\bFAIL(ED)?\b|\bCRITICAL\b|✗|HEALTH_ERR','#ff5c6c'),(r'^=+.*=+$|^┏.*|^┃.*|^┣.*|^┗.*','#7fdbff')]
 
 PAGE='''<!doctype html><meta charset=utf-8>
@@ -25,6 +56,7 @@ PAGE='''<!doctype html><meta charset=utf-8>
 <div id=win><div id=bar><span class=dot style=background:#ff5f56></span><span class=dot style=background:#ffbd2e></span><span class=dot style=background:#27c93f></span><span id=ttl>%(t)s</span></div><pre id=t></pre></div>'''
 
 def colorize(line, rules):
+    if '\x1b[' in line: return ansi_to_html(line)
     s=html.escape(line)
     for pat,col in rules:
         if pat.startswith('^'):