Add link to apex from access page

.gitignore

@@ -1 +1,2 @@
-./public
+/public
+.hugo_build.lock

content/access/index.md

@@ -7,7 +7,7 @@ description: "Request access to the machines"
 
 To request access to the machines we will need some information:
 
-1. Which machines you want access to ([hut](/hut), [fox](/fox), owl1, owl2, eudy, koro...)
+1. Which machines you want access to ([apex](/apex), [hut](/hut), [fox](/fox), [owl1, owl2](/owl), eudy, koro...)
 1. Your user name (make sure it matches the one you use for the BSC intranet)
 1. Your real name and surname (for identification purposes)
 1. The salted hash of your login password, generated with `mkpasswd -m sha-512`

content/apex/_index.md

@@ -0,0 +1,22 @@
+---
+title: "Apex"
+description: "Login node"
+date: 2025-09-05T15:34:59+02:00
+---
+
+![Apex](apex.jpg)
+
+Picture by [Michal Klajban](https://commons.wikimedia.org/wiki/File:Aoraki_-_Mt_Cook,_Aoraki_-_Mount_Cook_National_Park,_New_Zealand.jpg),
+licensed under [CC BY-SA](https://creativecommons.org/licenses/by-sa/4.0/deed.en).
+Cropped and color corrected.
+
+Apex serves as the login node to the rest of machines in jungle. Connect to it
+by accessing `ssflogin.bsc.es`, only from the apex you will be able to see other
+machines.
+
+Use `sinfo` to see which nodes are available and `salloc` to request them (see
+the manual for more details). Avoid doing large builds or computations in apex,
+use a different node instead.
+
+The home is mounted from a hardware RAID 5 of 4 disks, and is shared across
+other machines.