diff --git a/content/SUMMARY.md b/content/SUMMARY.md
index d6f3f58..3a9fccb 100644
--- a/content/SUMMARY.md
+++ b/content/SUMMARY.md
@@ -49,6 +49,7 @@
         - [🗈 Decorator that runs a function in a thread](python/decorator-that-runs-a-function-in-a-thread.md)
 - [💽 Software](software/index.md)
     - [🗈 Black pills](software/black-pills.md)
+    - [🗈 Cloning a Paxton fob with a Proxmark3](software/cloning-a-paxton-fob-with-a-proxmark3.md)
     - [🗈 Getting VoWiFi working on Xiaomi.eu](software/getting-vowifi-working-on-xiaomi-eu.md)
     - [🗈 Monero GUI syncing stuck with Ledger](software/monero-gui-syncing-stuck-with-ledger.md)
     - [🗈 Pairing the Xbox One controller in Linux](software/pairing-the-xbox-one-controller-in-linux.md)
diff --git a/content/ardupilot/tuning-the-tecs.md b/content/ardupilot/tuning-the-tecs.md
index 060793e..9c7de86 100644
--- a/content/ardupilot/tuning-the-tecs.md
+++ b/content/ardupilot/tuning-the-tecs.md
@@ -102,6 +102,6 @@ This is some more advanced information on tuning the TECS:
 * * *
 
 <p style="font-size:80%; font-style: italic">
-Last updated on March 23, 2022. For any questions/feedback,
+Last updated on November 26, 2023. For any questions/feedback,
 email me at <a href="mailto:hi@stavros.io">hi@stavros.io</a>.
 </p>
diff --git a/content/software/cloning-a-paxton-fob-with-a-proxmark3.md b/content/software/cloning-a-paxton-fob-with-a-proxmark3.md
new file mode 100644
index 0000000..fa9a851
--- /dev/null
+++ b/content/software/cloning-a-paxton-fob-with-a-proxmark3.md
@@ -0,0 +1,40 @@
+# Cloning a Paxton fob with a Proxmark3
+
+Basically, follow this guide:
+
+https://badcfe.org/how-to-paxton-with-proxmark/
+
+I managed to read my fob with:
+
+```
+lf hitag read --ht2 -k BDF5E846
+```
+
+If you're getting "Password failed!" or nothing back, move the fob around the 125KHz antenna (the top one), it should eventually work.
+
+Afterwards, [convert the fob pages to an EM4100 ID](https://static.badcfe.org/paxton-covert), and flash the ID to a T5577 emulator chip:
+
+```
+lf em 410x clone --id <your hex id>
+```
+
+Read it back to make sure:
+
+```
+lf em 410x reader
+```
+
+You should be done, but I haven't tested it as I don't have a Paxton reader handy.
+
+## Related reading
+
+* [Iceman's Proxmark3 firmware (use this one)](https://github.com/RfidResearchGroup/proxmark3)
+* [How to copy Paxton fobs using an RFIDler](https://gist.github.com/natmchugh/18e82761dbce52fa284c87c190dc926f#getting-hold-of-hitag2-tags)
+* [ How to copy, read and write Paxton fobs and cards with a Proxmark ](https://badcfe.org/how-to-paxton-with-proxmark/)
+
+* * *
+
+<p style="font-size:80%; font-style: italic">
+Last updated on February 14, 2024. For any questions/feedback,
+email me at <a href="mailto:hi@stavros.io">hi@stavros.io</a>.
+</p>
diff --git a/content/software/index.md b/content/software/index.md
index 0c17021..0c4eb4e 100644
--- a/content/software/index.md
+++ b/content/software/index.md
@@ -3,6 +3,7 @@
 Click on a link in the list below to go to that page:
 
 1. [Black pills](../../software/black-pills.html)
+1. [Cloning a Paxton fob with a Proxmark3](../../software/cloning-a-paxton-fob-with-a-proxmark3.html)
 1. [Getting VoWiFi working on Xiaomi.eu](../../software/getting-vowifi-working-on-xiaomi-eu.html)
 1. [Monero GUI syncing stuck with Ledger](../../software/monero-gui-syncing-stuck-with-ledger.html)
 1. [Pairing the Xbox One controller in Linux](../../software/pairing-the-xbox-one-controller-in-linux.html)