Engine: hugo v0.161.1-ea8f66a7ce988664dcc84c052fc96757042e2e4a+extended linux/amd64 BuildDate=2026-04-29T13:56:01Z VendorInfo=gohugoio Build Time: 2026-05-20 14:52:17 UTC Commit: 81b05a5 Branch: main Actor: ljf12825 Runner OS: Linux Host(Build): ljf12825.github.io Host(Runtime):
This website consists of multiple sub-websites.
This page is root(/), provides build informations, a user manual and entrance to $HOME(~)
If this is your first time here, I recommend that you read through this user manual.
This website makes extensive use of floating windows to minimize page real estate and accommodate certain extreme screen aspect ratios.
The floating window is characterized by a blue title bar and is draggable.
Double-click the title to toggle between expanded and collapsed states.
The title structure takes the form >> >> >> NAME << << << or <<<<<<NAME>>>>>>, corresponding to the expanded and collapsed states, respectively.
The floating window features state and position memory capabilities; it reverts to its default layout—and only does so—when the page width is reduced, in order to prevent it from being obscured.
The NAME includes:
Navigation and NavTable of Contents and TocIndexer and IdxThis site has two Navigation options: Main Navigation and Top Navigation.
As shown in the STRUCTURE, this site uses the root page(/, i.e. this page) as the root node for all pages.Main Navigation is responsible for navigating between different subsites/modules/second-level directories and external websites.Top Navigation is responsible for navigation within the same subsite’s third-level directory; different subsites have different Top Navigation.
Main Navigation is floating window Navigation
The main navigation’s default position is in the bottom-right corner of the page.
The website will remember the position and expanded state, and retain the state on the next visit.
Navigation comprises two modes: INTERNAL and EXTERNAL which handle internal and external site redirects, respectively.
Internal meaning and content of each node in Main Navigation are explained in detail in ~/$HOMEExternal redirect links can be found under ～/reference/.Top Navigation is used to provide navigation for the current sub-site.
It always displays under Prompt Command.
If this option has sub-options, a floating window will appear when you hover the mouse over this item.
On Search List pages, it switches to displaying search result metadata instead.
ToC(Table of Contents) is a floating window that appears only on the article page and is responsible for quick article title navigation.
The default position of ToC is the right-top corner of content page.
Indexer is a floatting windows which default position is left-bottom corner of page.
Indexer is a global search engine that allows you to quickly index articles by entering their titles or keywords.
The search scope has two modes: Global and Current. Global mode searches all content on the website from anywhere within the site, while Current mode searches within the most granular possible scope.
You can also perform a fuzzy search by gradually narrowing down the search scope by selecting Tags, Categories, and Types.
The Top Results section will provide up to eight of the most relevant results. To view the complete search results, click MORE to jump to the Search List for more details.
If there are no results, MORE cannot be clicked.
Typing /* will match all options.
When you are located within a subfolder under eco/engine/, the Indexer displays a 3D scatter plot, allowing you to quickly gain an overview and navigate.
Search List is a special page which shows all results filtered by Indexer, and it supports as detailed information as possible of results.
The Prompt Command format ip@url:path/$ command
Site will query your ip from api, and it used solely for display purposes.
If the query fails, guest is displayed by default.\
command includes:
ls | xarg cat at foldcommand = less content name at contentpath consists of a series of links; clicking on a specific segment allows for navigation, thereby implementing a breadcrumb trail.
Jeff Lee
20 May 2026