So I used to, like many, use Chrome search engine entries without
a `%s` as url bar aliases. I had many of them. Then Google decided
to break that functionality. Search engines with `%s` still work,
so I configured the `a` search engine to redirect to a simple
`.php` script, the core of which is here:
```php
// ... stuff like checking the user is authorised
$aliases = [ ];
if( ! file_exists("aliases.txt") ) {
  http_response_code(500);
  echo "no aliases";
  exit();
}
$a = file_get_contents("aliases.txt");
$lines = explode("\n",$a);
foreach($lines as $line) {
  # anything beyond the first two nonwhitespace entities 
  # are silently discarded (urls never have spaces)
  $line = trim($line);
  if( preg_match('/^#',$line) {
    continue;
  }
  $xs = preg_split('/\s+/',$line); 
  if( count($xs) == 1 ) {
    continue;
  }
  $aliases[$xs[0]] = $xs[1];
}
$qs = $_SERVER["QUERY_STRING"];
$qs = urldecode($qs);
$qs = trim($qs);
$qs = preg_replace('/\s+/','.',$qs);
if( array_key_exists($qs,$aliases) ) {
  $url = $aliases[$qs];
  header('Location: '.$url, true, 303);
  exit();
}
// do whatever for blank query string or not found...
```

All you need is a file of the form
```
# youtube
and https://www.youtube.com/@andthatsmytune

# bbc
ip https://www.bbc.co.uk/iplayer
```
and then e.g. typing `a and` into the url bar [takes you here](https://www.youtube.com/@andthatsmytune).
So it's only costing me two extra keypresses each time.

How you edit this file is up to you: all in, with editing and viewing code together,
it's a little under 500 lines of PHP, HTML, Javascript, and CSS combined.

Very much a quick bodge I wrote for myself in an hour when a Chrome update
broke the aliases I was using (took me a while googling around to find out
why Chrome was misbehaving).