download zip and extract extension in folder web/modules/third-party/extensions
if extracted extension folder is @tagspacesarithmetic-player_1.0.0
extension path will be: web/modules/third-party/extensions/@tagspacesarithmetic-player_1.0.0
add this configuration to web/extconfig.js
window.ExtExtensionsFound = [
{
extensionId: '@tagspaces/arithmetic-player',
extensionName: 'Mental Arithmetic',
extensionTypes: ['viewer'],
extensionEnabled: true,
version: '1.0.0',
},
];
window.ExtSupportedFileTypes = [
{
type: 'math',
color: '#5cb85c',
viewer: 'third-party/extensions/@tagspacesarithmetic-player_1.0.0/build',
},
];
note: to update extensions list it's need to delete web browser application data