### CMake Project Configuration for ksshaskpass

Source: https://github.com/kde/ksshaskpass/blob/master/CMakeLists.txt

This snippet defines the project requirements, finds necessary packages like Qt6 and KF6, and configures the build target for the ksshaskpass executable. It also includes setup for code formatting and installation paths.

```cmake
cmake_minimum_required(VERSION 3.16)
project(ksshaskpass)
set(PROJECT_VERSION "6.6.80")

set(CMAKE_CXX_STANDARD 20)
set(CMAKE_CXX_STANDARD_REQUIRED ON)

find_package(ECM 6.22.0 REQUIRED NO_MODULE)
set(CMAKE_MODULE_PATH ${ECM_MODULE_PATH})

include(KDEInstallDirs)
include(KDECompilerSettings NO_POLICY_SCOPE)
include(KDECMakeSettings)

find_package(Qt6 6.10.0 REQUIRED COMPONENTS Core)
find_package(Qt6Keychain 0.15.0 REQUIRED)
find_package(KF6 6.22.0 REQUIRED COMPONENTS CoreAddons I18n WidgetsAddons)

set(ksshaskpass_SRCS src/main.cpp)
add_executable(ksshaskpass ${ksshaskpass_SRCS})
target_link_libraries(ksshaskpass
    KF6::CoreAddons
    KF6::I18n
    KF6::WidgetsAddons
    Qt6Keychain::Qt6Keychain
)

install(TARGETS ksshaskpass DESTINATION ${KDE_INSTALL_TARGETS_DEFAULT_ARGS})
```

--------------------------------

### Build Ksshaskpass from Source

Source: https://context7.com/kde/ksshaskpass/llms.txt

Provides commands to install dependencies and compile Ksshaskpass using CMake on major Linux distributions.

```bash
git clone https://invent.kde.org/plasma/ksshaskpass.git
cd ksshaskpass
mkdir build && cd build
cmake .. -DCMAKE_INSTALL_PREFIX=/usr
make
sudo make install
```

--------------------------------

### Automate SSH Key Loading in KDE

Source: https://context7.com/kde/ksshaskpass/llms.txt

Creates an autostart script to load SSH keys into the agent automatically upon session startup using graphical prompts.

```bash
#!/bin/sh
SSH_ASKPASS=/usr/bin/ksshaskpass ssh-add < /dev/null
SSH_ASKPASS=/usr/bin/ksshaskpass ssh-add ~/.ssh/id_ed25519 < /dev/null
SSH_ASKPASS=/usr/bin/ksshaskpass ssh-add ~/.ssh/id_rsa ~/.ssh/github_key < /dev/null
```

--------------------------------

### Configure SSH Askpass Environment Variables (Bash)

Source: https://context7.com/kde/ksshaskpass/llms.txt

This snippet demonstrates how to configure ksshaskpass using environment variables in a Bash shell. It shows the required SSH_ASKPASS variable to point to the ksshaskpass binary and optional variables like SSH_ASKPASS_REQUIRE to control its behavior. The DISPLAY variable is also shown for GUI applications.

```bash
export SSH_ASKPASS=/usr/bin/ksshaskpass

# Optional: Control when askpass is used (OpenSSH 8.4+)
# "never" - never use askpass
# "prefer" - prefer askpass over terminal
# "force" - always use askpass
export SSH_ASKPASS_REQUIRE=prefer

# Set by OpenSSH to indicate prompt type (read by ksshaskpass)
# "confirm" - yes/no confirmation
# "none" - cancel-only dialog
# "" or "entry" - text/password entry
# SSH_ASKPASS_PROMPT=confirm  # (set automatically by ssh)

# X11 display for GUI (usually set automatically)
export DISPLAY=:0
```

--------------------------------

### Integrate Ksshaskpass with Git

Source: https://context7.com/kde/ksshaskpass/llms.txt

Configures Git to use Ksshaskpass for credential prompts, allowing graphical authentication for remote repository operations.

```bash
export GIT_ASKPASS=/usr/bin/ksshaskpass
git config --global core.askPass /usr/bin/ksshaskpass
git clone https://github.com/user/private-repo.git
```

--------------------------------

### Configure SSH_ASKPASS Environment Variable

Source: https://context7.com/kde/ksshaskpass/llms.txt

Sets the required environment variables in shell configuration files to enable Ksshaskpass as the default passphrase handler.

```bash
export SSH_ASKPASS=/usr/bin/ksshaskpass
export SSH_ASKPASS_REQUIRE=prefer
echo $SSH_ASKPASS
```

--------------------------------

### Manage SSH Keys via Systemd User Service

Source: https://context7.com/kde/ksshaskpass/llms.txt

Defines a systemd user service to manage SSH key loading automatically within a user session.

```ini
[Unit]
Description=SSH Key Agent
Requires=ssh-agent.service
After=ssh-agent.service

[Service]
Type=oneshot
Environment=SSH_ASKPASS=/usr/bin/ksshaskpass
Environment=SSH_AUTH_SOCK=%t/ssh-agent.socket
Environment=DISPLAY=:0
ExecStart=/usr/bin/ssh-add
RemainAfterExit=yes

[Install]
WantedBy=default.target
```

```bash
systemctl --user daemon-reload
systemctl --user enable ssh-add.service
systemctl --user start ssh-add.service
```

=== COMPLETE CONTENT === This response contains all available snippets from this library. No additional content exists. Do not make further requests.