Standalone SBCL application

standalone

[luke@thinky:~/standalone]$ cat standalone.lisp
;; Load any libraries that we want.
(require :uiop)

;; Load any data that we want.
(defvar *protocols-string* (uiop:read-file-string "/etc/protocols")
  "String containing the contents of /etc/protocols.")

;; Define what our application will do at runtime.
(defun run ()
  "Entry point when the program starts."
  (princ *protocols-string*))

;; Save a snapshot of this process into a file called 'standalone'.
;; when the executable is started it will "resume" and call (run) above.
(sb-ext:save-lisp-and-die "standalone" :toplevel #'run :executable t)

[luke@thinky:~/standalone]$ sbcl --load standalone.lisp
This is SBCL 2.0.8.nixos, an implementation of ANSI Common Lisp.
More information about SBCL is available at <http://www.sbcl.org/>.

SBCL is free software, provided as is, with absolutely no warranty.
It is mostly in the public domain; some portions are provided under
BSD-style licenses.  See the CREDITS and COPYING files in the
distribution for more information.
[undoing binding stack and other enclosing state... done]
[performing final GC... done]
[defragmenting immobile space... (fin,inst,fdefn,code,sym)=367+706+15365+17100+25245... done]
[saving current Lisp image into standalone:
writing 0 bytes from the read-only space at 0x50000000
writing 736 bytes from the static space at 0x50100000
writing 23134208 bytes from the dynamic space at 0x1000000000
writing 1843200 bytes from the immobile space at 0x50200000
writing 10862592 bytes from the immobile space at 0x52000000
done]

[luke@thinky:~/standalone]$ ls -lh
total 35M
-rwxr-xr-x 1 luke users 35M Apr  7 16:38 standalone
-rw-r--r-- 1 luke users 556 Apr  7 16:38 standalone.lisp

[luke@thinky:~/standalone]$ ./standalone | head 
# See also protocols(5) and IANA official page :
# https://www.iana.org/assignments/protocol-numbers
#
# (last updated 2020-01-31)
hopopt           0 HOPOPT         # IPv6 Hop-by-Hop Option
icmp             1 ICMP           # Internet Control Message
igmp             2 IGMP           # Internet Group Management
ggp              3 GGP            # Gateway-to-Gateway
ipv4             4 IPv4           # IPv4 encapsulation
st               5 ST             # Stream